id	sid	tid	token	lemma	pos
cord-291946-kq0rsuxj	1	1	key	key	NN
cord-291946-kq0rsuxj	1	2	:	:	:
cord-291946-kq0rsuxj	1	3	cord-291946-kq0rsuxj	cord-291946-kq0rsuxj	.
cord-291946-kq0rsuxj	2	1	authors	author	NNS
cord-291946-kq0rsuxj	2	2	:	:	:
cord-291946-kq0rsuxj	2	3	Etienne	Etienne	NNP
cord-291946-kq0rsuxj	2	4	,	,	,
cord-291946-kq0rsuxj	2	5	Lucie	Lucie	NNP
cord-291946-kq0rsuxj	2	6	;	;	:
cord-291946-kq0rsuxj	2	7	Emerman	Emerman	NNP
cord-291946-kq0rsuxj	2	8	,	,	,
cord-291946-kq0rsuxj	2	9	Michael	Michael	NNP
cord-291946-kq0rsuxj	2	10	title	title	NN
cord-291946-kq0rsuxj	2	11	:	:	:
cord-291946-kq0rsuxj	2	12	The	the	DT
cord-291946-kq0rsuxj	2	13	Mongoose	Mongoose	NNP
cord-291946-kq0rsuxj	2	14	,	,	,
cord-291946-kq0rsuxj	2	15	the	the	DT
cord-291946-kq0rsuxj	2	16	Pheasant	Pheasant	NNP
cord-291946-kq0rsuxj	2	17	,	,	,
cord-291946-kq0rsuxj	2	18	the	the	DT
cord-291946-kq0rsuxj	2	19	Pox	Pox	NNP
cord-291946-kq0rsuxj	2	20	,	,	,
cord-291946-kq0rsuxj	2	21	and	and	CC
cord-291946-kq0rsuxj	2	22	the	the	DT
cord-291946-kq0rsuxj	2	23	Retrovirus	Retrovirus	NNP
cord-291946-kq0rsuxj	2	24	date	date	NN
cord-291946-kq0rsuxj	2	25	:	:	:
cord-291946-kq0rsuxj	2	26	2013	2013	CD
cord-291946-kq0rsuxj	2	27	-	-	SYM
cord-291946-kq0rsuxj	2	28	08	08	CD
cord-291946-kq0rsuxj	2	29	-	-	HYPH
cord-291946-kq0rsuxj	2	30	27	27	CD
cord-291946-kq0rsuxj	2	31	journal	journal	NN
cord-291946-kq0rsuxj	2	32	:	:	:
cord-291946-kq0rsuxj	3	1	PLoS	PLoS	NNP
cord-291946-kq0rsuxj	3	2	Biol	Biol	NNP
cord-291946-kq0rsuxj	3	3	DOI	DOI	NNP
cord-291946-kq0rsuxj	3	4	:	:	:
cord-291946-kq0rsuxj	3	5	10.1371	10.1371	CD
cord-291946-kq0rsuxj	3	6	/	/	SYM
cord-291946-kq0rsuxj	3	7	journal.pbio.1001641	journal.pbio.1001641	NNP
cord-291946-kq0rsuxj	3	8	sha	sha	NNP
cord-291946-kq0rsuxj	3	9	:	:	:
cord-291946-kq0rsuxj	3	10	06c172a11ee30931ac537dfb70ce020dced50918	06c172a11ee30931ac537dfb70ce020dced50918	.
cord-291946-kq0rsuxj	4	1	doc_id	doc_id	CD
cord-291946-kq0rsuxj	4	2	:	:	:
cord-291946-kq0rsuxj	4	3	291946	291946	CD
cord-291946-kq0rsuxj	4	4	cord_uid	cord_uid	NNS
cord-291946-kq0rsuxj	4	5	:	:	:
cord-291946-kq0rsuxj	5	1	kq0rsuxj	kq0rsuxj	NNP
cord-291946-kq0rsuxj	6	1	Paleovirology	paleovirology	NN
cord-291946-kq0rsuxj	6	2	is	be	VBZ
cord-291946-kq0rsuxj	6	3	the	the	DT
cord-291946-kq0rsuxj	6	4	study	study	NN
cord-291946-kq0rsuxj	6	5	of	of	IN
cord-291946-kq0rsuxj	6	6	ancient	ancient	JJ
cord-291946-kq0rsuxj	6	7	viruses	virus	NNS
cord-291946-kq0rsuxj	6	8	.	.	.
cord-291946-kq0rsuxj	7	1	The	the	DT
cord-291946-kq0rsuxj	7	2	existence	existence	NN
cord-291946-kq0rsuxj	7	3	of	of	IN
cord-291946-kq0rsuxj	7	4	a	a	DT
cord-291946-kq0rsuxj	7	5	paleovirus	paleovirus	NNP
cord-291946-kq0rsuxj	7	6	can	can	MD
cord-291946-kq0rsuxj	7	7	sometimes	sometimes	RB
cord-291946-kq0rsuxj	7	8	be	be	VB
cord-291946-kq0rsuxj	7	9	detected	detect	VBN
cord-291946-kq0rsuxj	7	10	by	by	IN
cord-291946-kq0rsuxj	7	11	virtue	virtue	NN
cord-291946-kq0rsuxj	7	12	of	of	IN
cord-291946-kq0rsuxj	7	13	its	-PRON-	PRP$
cord-291946-kq0rsuxj	7	14	accidental	accidental	JJ
cord-291946-kq0rsuxj	7	15	insertion	insertion	NN
cord-291946-kq0rsuxj	7	16	into	into	IN
cord-291946-kq0rsuxj	7	17	the	the	DT
cord-291946-kq0rsuxj	7	18	germline	germline	NN
cord-291946-kq0rsuxj	7	19	of	of	IN
cord-291946-kq0rsuxj	7	20	different	different	JJ
cord-291946-kq0rsuxj	7	21	animal	animal	NN
cord-291946-kq0rsuxj	7	22	species	specie	NNS
cord-291946-kq0rsuxj	7	23	,	,	,
cord-291946-kq0rsuxj	7	24	which	which	WDT
cord-291946-kq0rsuxj	7	25	allows	allow	VBZ
cord-291946-kq0rsuxj	7	26	one	one	CD
cord-291946-kq0rsuxj	7	27	to	to	IN
cord-291946-kq0rsuxj	7	28	date	date	NN
cord-291946-kq0rsuxj	7	29	when	when	WRB
cord-291946-kq0rsuxj	7	30	the	the	DT
cord-291946-kq0rsuxj	7	31	virus	virus	NN
cord-291946-kq0rsuxj	7	32	actually	actually	RB
cord-291946-kq0rsuxj	7	33	existed	exist	VBD
cord-291946-kq0rsuxj	7	34	.	.	.
cord-291946-kq0rsuxj	8	1	However	however	RB
cord-291946-kq0rsuxj	8	2	,	,	,
cord-291946-kq0rsuxj	8	3	the	the	DT
cord-291946-kq0rsuxj	8	4	ancient	ancient	JJ
cord-291946-kq0rsuxj	8	5	and	and	CC
cord-291946-kq0rsuxj	8	6	the	the	DT
cord-291946-kq0rsuxj	8	7	modern	modern	JJ
cord-291946-kq0rsuxj	8	8	often	often	RB
cord-291946-kq0rsuxj	8	9	connect	connect	VBP
cord-291946-kq0rsuxj	8	10	,	,	,
cord-291946-kq0rsuxj	8	11	as	as	IN
cord-291946-kq0rsuxj	8	12	modern	modern	JJ
cord-291946-kq0rsuxj	8	13	viruses	virus	NNS
cord-291946-kq0rsuxj	8	14	have	have	VBP
cord-291946-kq0rsuxj	8	15	unexpected	unexpected	JJ
cord-291946-kq0rsuxj	8	16	origins	origin	NNS
cord-291946-kq0rsuxj	8	17	that	that	WDT
cord-291946-kq0rsuxj	8	18	can	can	MD
cord-291946-kq0rsuxj	8	19	be	be	VB
cord-291946-kq0rsuxj	8	20	traced	trace	VBN
cord-291946-kq0rsuxj	8	21	to	to	IN
cord-291946-kq0rsuxj	8	22	ancient	ancient	JJ
cord-291946-kq0rsuxj	8	23	infections	infection	NNS
cord-291946-kq0rsuxj	8	24	.	.	.
cord-291946-kq0rsuxj	9	1	The	the	DT
cord-291946-kq0rsuxj	9	2	genomes	genome	NNS
cord-291946-kq0rsuxj	9	3	of	of	IN
cord-291946-kq0rsuxj	9	4	two	two	CD
cord-291946-kq0rsuxj	9	5	species	specie	NNS
cord-291946-kq0rsuxj	9	6	of	of	IN
cord-291946-kq0rsuxj	9	7	mongooses	mongoose	NNS
cord-291946-kq0rsuxj	9	8	and	and	CC
cord-291946-kq0rsuxj	9	9	an	an	DT
cord-291946-kq0rsuxj	9	10	egg	egg	NN
cord-291946-kq0rsuxj	9	11	-	-	HYPH
cord-291946-kq0rsuxj	9	12	laying	lay	VBG
cord-291946-kq0rsuxj	9	13	mammal	mammal	NN
cord-291946-kq0rsuxj	9	14	called	call	VBN
cord-291946-kq0rsuxj	9	15	an	an	DT
cord-291946-kq0rsuxj	9	16	echidna	echidna	NN
cord-291946-kq0rsuxj	9	17	show	show	NN
cord-291946-kq0rsuxj	9	18	that	that	IN
cord-291946-kq0rsuxj	9	19	a	a	DT
cord-291946-kq0rsuxj	9	20	virus	virus	NN
cord-291946-kq0rsuxj	9	21	currently	currently	RB
cord-291946-kq0rsuxj	9	22	present	present	JJ
cord-291946-kq0rsuxj	9	23	in	in	IN
cord-291946-kq0rsuxj	9	24	poultry	poultry	NN
cord-291946-kq0rsuxj	9	25	,	,	,
cord-291946-kq0rsuxj	9	26	the	the	DT
cord-291946-kq0rsuxj	9	27	reticuloendotheliosis	reticuloendotheliosis	NNP
cord-291946-kq0rsuxj	9	28	virus	virus	NN
cord-291946-kq0rsuxj	9	29	(	(	-LRB-
cord-291946-kq0rsuxj	9	30	REV	REV	NNP
cord-291946-kq0rsuxj	9	31	)	)	-RRB-
cord-291946-kq0rsuxj	9	32	,	,	,
cord-291946-kq0rsuxj	9	33	is	be	VBZ
cord-291946-kq0rsuxj	9	34	actually	actually	RB
cord-291946-kq0rsuxj	9	35	of	of	IN
cord-291946-kq0rsuxj	9	36	ancient	ancient	JJ
cord-291946-kq0rsuxj	9	37	exotic	exotic	JJ
cord-291946-kq0rsuxj	9	38	mammalian	mammalian	JJ
cord-291946-kq0rsuxj	9	39	origin	origin	NN
cord-291946-kq0rsuxj	9	40	.	.	.
cord-291946-kq0rsuxj	10	1	REV	REV	NNP
cord-291946-kq0rsuxj	10	2	apparently	apparently	RB
cord-291946-kq0rsuxj	10	3	spread	spread	VBD
cord-291946-kq0rsuxj	10	4	to	to	IN
cord-291946-kq0rsuxj	10	5	poultry	poultry	NN
cord-291946-kq0rsuxj	10	6	through	through	IN
cord-291946-kq0rsuxj	10	7	a	a	DT
cord-291946-kq0rsuxj	10	8	circuitous	circuitous	JJ
cord-291946-kq0rsuxj	10	9	route	route	NN
cord-291946-kq0rsuxj	10	10	involving	involve	VBG
cord-291946-kq0rsuxj	10	11	the	the	DT
cord-291946-kq0rsuxj	10	12	isolation	isolation	NN
cord-291946-kq0rsuxj	10	13	of	of	IN
cord-291946-kq0rsuxj	10	14	malaria	malaria	NN
cord-291946-kq0rsuxj	10	15	parasites	parasite	NNS
cord-291946-kq0rsuxj	10	16	from	from	IN
cord-291946-kq0rsuxj	10	17	a	a	DT
cord-291946-kq0rsuxj	10	18	pheasant	pheasant	NN
cord-291946-kq0rsuxj	10	19	from	from	IN
cord-291946-kq0rsuxj	10	20	Borneo	Borneo	NNP
cord-291946-kq0rsuxj	10	21	housed	house	VBN
cord-291946-kq0rsuxj	10	22	at	at	IN
cord-291946-kq0rsuxj	10	23	the	the	DT
cord-291946-kq0rsuxj	10	24	Bronx	Bronx	NNP
cord-291946-kq0rsuxj	10	25	Zoo	Zoo	NNP
cord-291946-kq0rsuxj	10	26	that	that	WDT
cord-291946-kq0rsuxj	10	27	was	be	VBD
cord-291946-kq0rsuxj	10	28	contaminated	contaminate	VBN
cord-291946-kq0rsuxj	10	29	with	with	IN
cord-291946-kq0rsuxj	10	30	REV	REV	NNP
cord-291946-kq0rsuxj	10	31	.	.	.
cord-291946-kq0rsuxj	11	1	Repeated	repeat	VBN
cord-291946-kq0rsuxj	11	2	passage	passage	NN
cord-291946-kq0rsuxj	11	3	of	of	IN
cord-291946-kq0rsuxj	11	4	this	this	DT
cord-291946-kq0rsuxj	11	5	virus	virus	NN
cord-291946-kq0rsuxj	11	6	in	in	IN
cord-291946-kq0rsuxj	11	7	poultry	poultry	NN
cord-291946-kq0rsuxj	11	8	adapted	adapt	VBD
cord-291946-kq0rsuxj	11	9	the	the	DT
cord-291946-kq0rsuxj	11	10	virus	virus	NN
cord-291946-kq0rsuxj	11	11	to	to	IN
cord-291946-kq0rsuxj	11	12	its	-PRON-	PRP$
cord-291946-kq0rsuxj	11	13	new	new	JJ
cord-291946-kq0rsuxj	11	14	host	host	NN
cord-291946-kq0rsuxj	11	15	.	.	.
cord-291946-kq0rsuxj	12	1	At	at	IN
cord-291946-kq0rsuxj	12	2	some	some	DT
cord-291946-kq0rsuxj	12	3	point	point	NN
cord-291946-kq0rsuxj	12	4	,	,	,
cord-291946-kq0rsuxj	12	5	the	the	DT
cord-291946-kq0rsuxj	12	6	virus	virus	NN
cord-291946-kq0rsuxj	12	7	got	get	VBD
cord-291946-kq0rsuxj	12	8	inserted	insert	VBN
cord-291946-kq0rsuxj	12	9	into	into	IN
cord-291946-kq0rsuxj	12	10	another	another	DT
cord-291946-kq0rsuxj	12	11	virus	virus	NN
cord-291946-kq0rsuxj	12	12	,	,	,
cord-291946-kq0rsuxj	12	13	called	call	VBN
cord-291946-kq0rsuxj	12	14	fowlpox	fowlpox	NNP
cord-291946-kq0rsuxj	12	15	virus	virus	NN
cord-291946-kq0rsuxj	12	16	,	,	,
cord-291946-kq0rsuxj	12	17	which	which	WDT
cord-291946-kq0rsuxj	12	18	has	have	VBZ
cord-291946-kq0rsuxj	12	19	spread	spread	VBN
cord-291946-kq0rsuxj	12	20	back	back	RB
cord-291946-kq0rsuxj	12	21	into	into	IN
cord-291946-kq0rsuxj	12	22	the	the	DT
cord-291946-kq0rsuxj	12	23	wild	wild	NN
cord-291946-kq0rsuxj	12	24	.	.	.
cord-291946-kq0rsuxj	13	1	Although	although	IN
cord-291946-kq0rsuxj	13	2	REV	REV	NNP
cord-291946-kq0rsuxj	13	3	may	may	MD
cord-291946-kq0rsuxj	13	4	still	still	RB
cord-291946-kq0rsuxj	13	5	exist	exist	VB
cord-291946-kq0rsuxj	13	6	somewhere	somewhere	RB
cord-291946-kq0rsuxj	13	7	in	in	IN
cord-291946-kq0rsuxj	13	8	a	a	DT
cord-291946-kq0rsuxj	13	9	mammalian	mammalian	JJ
cord-291946-kq0rsuxj	13	10	host	host	NN
cord-291946-kq0rsuxj	13	11	,	,	,
cord-291946-kq0rsuxj	13	12	its	-PRON-	PRP$
cord-291946-kq0rsuxj	13	13	modern	modern	JJ
cord-291946-kq0rsuxj	13	14	form	form	NN
cord-291946-kq0rsuxj	13	15	links	link	VBZ
cord-291946-kq0rsuxj	13	16	an	an	DT
cord-291946-kq0rsuxj	13	17	8	8	CD
cord-291946-kq0rsuxj	13	18	million	million	CD
cord-291946-kq0rsuxj	13	19	-	-	HYPH
cord-291946-kq0rsuxj	13	20	year	year	NN
cord-291946-kq0rsuxj	13	21	-	-	HYPH
cord-291946-kq0rsuxj	13	22	old	old	JJ
cord-291946-kq0rsuxj	13	23	infection	infection	NN
cord-291946-kq0rsuxj	13	24	of	of	IN
cord-291946-kq0rsuxj	13	25	the	the	DT
cord-291946-kq0rsuxj	13	26	ancestor	ancestor	NN
cord-291946-kq0rsuxj	13	27	of	of	IN
cord-291946-kq0rsuxj	13	28	a	a	DT
cord-291946-kq0rsuxj	13	29	mongoose	mongoose	NN
cord-291946-kq0rsuxj	13	30	to	to	IN
cord-291946-kq0rsuxj	13	31	a	a	DT
cord-291946-kq0rsuxj	13	32	virus	virus	NN
cord-291946-kq0rsuxj	13	33	that	that	WDT
cord-291946-kq0rsuxj	13	34	now	now	RB
cord-291946-kq0rsuxj	13	35	is	be	VBZ
cord-291946-kq0rsuxj	13	36	circulating	circulate	VBG
cord-291946-kq0rsuxj	13	37	in	in	IN
cord-291946-kq0rsuxj	13	38	wild	wild	JJ
cord-291946-kq0rsuxj	13	39	birds	bird	NNS
cord-291946-kq0rsuxj	13	40	through	through	IN
cord-291946-kq0rsuxj	13	41	malaria	malaria	NN
cord-291946-kq0rsuxj	13	42	studies	study	NNS
cord-291946-kq0rsuxj	13	43	in	in	IN
cord-291946-kq0rsuxj	13	44	the	the	DT
cord-291946-kq0rsuxj	13	45	mid-20(th	mid-20(th	NNP
cord-291946-kq0rsuxj	13	46	)	)	-RRB-
cord-291946-kq0rsuxj	13	47	century	century	NN
cord-291946-kq0rsuxj	13	48	.	.	.
cord-291946-kq0rsuxj	14	1	These	these	DT
cord-291946-kq0rsuxj	14	2	lessons	lesson	NNS
cord-291946-kq0rsuxj	14	3	of	of	IN
cord-291946-kq0rsuxj	14	4	ancient	ancient	JJ
cord-291946-kq0rsuxj	14	5	and	and	CC
cord-291946-kq0rsuxj	14	6	modern	modern	JJ
cord-291946-kq0rsuxj	14	7	viruses	virus	NNS
cord-291946-kq0rsuxj	14	8	have	have	VBP
cord-291946-kq0rsuxj	14	9	implications	implication	NNS
cord-291946-kq0rsuxj	14	10	for	for	IN
cord-291946-kq0rsuxj	14	11	modern	modern	JJ
cord-291946-kq0rsuxj	14	12	human	human	JJ
cord-291946-kq0rsuxj	14	13	pandemics	pandemic	NNS
cord-291946-kq0rsuxj	14	14	from	from	IN
cord-291946-kq0rsuxj	14	15	viral	viral	JJ
cord-291946-kq0rsuxj	14	16	reservoirs	reservoir	NNS
cord-291946-kq0rsuxj	14	17	and	and	CC
cord-291946-kq0rsuxj	14	18	for	for	IN
cord-291946-kq0rsuxj	14	19	human	human	JJ
cord-291946-kq0rsuxj	14	20	interventions	intervention	NNS
cord-291946-kq0rsuxj	14	21	that	that	WDT
cord-291946-kq0rsuxj	14	22	may	may	MD
cord-291946-kq0rsuxj	14	23	come	come	VB
cord-291946-kq0rsuxj	14	24	with	with	IN
cord-291946-kq0rsuxj	14	25	unintended	unintended	JJ
cord-291946-kq0rsuxj	14	26	consequences	consequence	NNS
cord-291946-kq0rsuxj	14	27	.	.	.
cord-291946-kq0rsuxj	15	1	The	the	DT
cord-291946-kq0rsuxj	15	2	existence	existence	NN
cord-291946-kq0rsuxj	15	3	of	of	IN
cord-291946-kq0rsuxj	15	4	a	a	DT
cord-291946-kq0rsuxj	15	5	paleovirus	paleovirus	NNP
cord-291946-kq0rsuxj	15	6	can	can	MD
cord-291946-kq0rsuxj	15	7	sometimes	sometimes	RB
cord-291946-kq0rsuxj	15	8	be	be	VB
cord-291946-kq0rsuxj	15	9	detected	detect	VBN
cord-291946-kq0rsuxj	15	10	by	by	IN
cord-291946-kq0rsuxj	15	11	virtue	virtue	NN
cord-291946-kq0rsuxj	15	12	of	of	IN
cord-291946-kq0rsuxj	15	13	its	-PRON-	PRP$
cord-291946-kq0rsuxj	15	14	accidental	accidental	JJ
cord-291946-kq0rsuxj	15	15	insertion	insertion	NN
cord-291946-kq0rsuxj	15	16	into	into	IN
cord-291946-kq0rsuxj	15	17	the	the	DT
cord-291946-kq0rsuxj	15	18	germline	germline	NN
cord-291946-kq0rsuxj	15	19	of	of	IN
cord-291946-kq0rsuxj	15	20	different	different	JJ
cord-291946-kq0rsuxj	15	21	animal	animal	NN
cord-291946-kq0rsuxj	15	22	species	specie	NNS
cord-291946-kq0rsuxj	15	23	,	,	,
cord-291946-kq0rsuxj	15	24	which	which	WDT
cord-291946-kq0rsuxj	15	25	allows	allow	VBZ
cord-291946-kq0rsuxj	15	26	one	one	CD
cord-291946-kq0rsuxj	15	27	to	to	IN
cord-291946-kq0rsuxj	15	28	date	date	NN
cord-291946-kq0rsuxj	15	29	when	when	WRB
cord-291946-kq0rsuxj	15	30	the	the	DT
cord-291946-kq0rsuxj	15	31	virus	virus	NN
cord-291946-kq0rsuxj	15	32	actually	actually	RB
cord-291946-kq0rsuxj	15	33	existed	exist	VBD
cord-291946-kq0rsuxj	15	34	.	.	.
cord-291946-kq0rsuxj	16	1	However	however	RB
cord-291946-kq0rsuxj	16	2	,	,	,
cord-291946-kq0rsuxj	16	3	the	the	DT
cord-291946-kq0rsuxj	16	4	ancient	ancient	JJ
cord-291946-kq0rsuxj	16	5	and	and	CC
cord-291946-kq0rsuxj	16	6	the	the	DT
cord-291946-kq0rsuxj	16	7	modern	modern	JJ
cord-291946-kq0rsuxj	16	8	often	often	RB
cord-291946-kq0rsuxj	16	9	connect	connect	VBP
cord-291946-kq0rsuxj	16	10	,	,	,
cord-291946-kq0rsuxj	16	11	as	as	IN
cord-291946-kq0rsuxj	16	12	modern	modern	JJ
cord-291946-kq0rsuxj	16	13	viruses	virus	NNS
cord-291946-kq0rsuxj	16	14	have	have	VBP
cord-291946-kq0rsuxj	16	15	unexpected	unexpected	JJ
cord-291946-kq0rsuxj	16	16	origins	origin	NNS
cord-291946-kq0rsuxj	16	17	that	that	WDT
cord-291946-kq0rsuxj	16	18	can	can	MD
cord-291946-kq0rsuxj	16	19	be	be	VB
cord-291946-kq0rsuxj	16	20	traced	trace	VBN
cord-291946-kq0rsuxj	16	21	to	to	IN
cord-291946-kq0rsuxj	16	22	ancient	ancient	JJ
cord-291946-kq0rsuxj	16	23	infections	infection	NNS
cord-291946-kq0rsuxj	16	24	.	.	.
cord-291946-kq0rsuxj	17	1	The	the	DT
cord-291946-kq0rsuxj	17	2	genomes	genome	NNS
cord-291946-kq0rsuxj	17	3	of	of	IN
cord-291946-kq0rsuxj	17	4	two	two	CD
cord-291946-kq0rsuxj	17	5	species	specie	NNS
cord-291946-kq0rsuxj	17	6	of	of	IN
cord-291946-kq0rsuxj	17	7	mongooses	mongoose	NNS
cord-291946-kq0rsuxj	17	8	and	and	CC
cord-291946-kq0rsuxj	17	9	an	an	DT
cord-291946-kq0rsuxj	17	10	egg	egg	NN
cord-291946-kq0rsuxj	17	11	-	-	HYPH
cord-291946-kq0rsuxj	17	12	laying	lay	VBG
cord-291946-kq0rsuxj	17	13	mammal	mammal	NN
cord-291946-kq0rsuxj	17	14	called	call	VBN
cord-291946-kq0rsuxj	17	15	an	an	DT
cord-291946-kq0rsuxj	17	16	echidna	echidna	NN
cord-291946-kq0rsuxj	17	17	show	show	NN
cord-291946-kq0rsuxj	17	18	that	that	IN
cord-291946-kq0rsuxj	17	19	a	a	DT
cord-291946-kq0rsuxj	17	20	virus	virus	NN
cord-291946-kq0rsuxj	17	21	currently	currently	RB
cord-291946-kq0rsuxj	17	22	present	present	JJ
cord-291946-kq0rsuxj	17	23	in	in	IN
cord-291946-kq0rsuxj	17	24	poultry	poultry	NN
cord-291946-kq0rsuxj	17	25	,	,	,
cord-291946-kq0rsuxj	17	26	the	the	DT
cord-291946-kq0rsuxj	17	27	reticuloendotheliosis	reticuloendotheliosis	NNP
cord-291946-kq0rsuxj	17	28	virus	virus	NN
cord-291946-kq0rsuxj	17	29	(	(	-LRB-
cord-291946-kq0rsuxj	17	30	REV	REV	NNP
cord-291946-kq0rsuxj	17	31	)	)	-RRB-
cord-291946-kq0rsuxj	17	32	,	,	,
cord-291946-kq0rsuxj	17	33	is	be	VBZ
cord-291946-kq0rsuxj	17	34	actually	actually	RB
cord-291946-kq0rsuxj	17	35	of	of	IN
cord-291946-kq0rsuxj	17	36	ancient	ancient	JJ
cord-291946-kq0rsuxj	17	37	exotic	exotic	JJ
cord-291946-kq0rsuxj	17	38	mammalian	mammalian	JJ
cord-291946-kq0rsuxj	17	39	origin	origin	NN
cord-291946-kq0rsuxj	17	40	.	.	.
cord-291946-kq0rsuxj	18	1	REV	REV	NNP
cord-291946-kq0rsuxj	18	2	apparently	apparently	RB
cord-291946-kq0rsuxj	18	3	spread	spread	VBD
cord-291946-kq0rsuxj	18	4	to	to	IN
cord-291946-kq0rsuxj	18	5	poultry	poultry	NN
cord-291946-kq0rsuxj	18	6	through	through	IN
cord-291946-kq0rsuxj	18	7	a	a	DT
cord-291946-kq0rsuxj	18	8	circuitous	circuitous	JJ
cord-291946-kq0rsuxj	18	9	route	route	NN
cord-291946-kq0rsuxj	18	10	involving	involve	VBG
cord-291946-kq0rsuxj	18	11	the	the	DT
cord-291946-kq0rsuxj	18	12	isolation	isolation	NN
cord-291946-kq0rsuxj	18	13	of	of	IN
cord-291946-kq0rsuxj	18	14	malaria	malaria	NN
cord-291946-kq0rsuxj	18	15	parasites	parasite	NNS
cord-291946-kq0rsuxj	18	16	from	from	IN
cord-291946-kq0rsuxj	18	17	a	a	DT
cord-291946-kq0rsuxj	18	18	pheasant	pheasant	NN
cord-291946-kq0rsuxj	18	19	from	from	IN
cord-291946-kq0rsuxj	18	20	Borneo	Borneo	NNP
cord-291946-kq0rsuxj	18	21	housed	house	VBN
cord-291946-kq0rsuxj	18	22	at	at	IN
cord-291946-kq0rsuxj	18	23	the	the	DT
cord-291946-kq0rsuxj	18	24	Bronx	Bronx	NNP
cord-291946-kq0rsuxj	18	25	Zoo	Zoo	NNP
cord-291946-kq0rsuxj	18	26	that	that	WDT
cord-291946-kq0rsuxj	18	27	was	be	VBD
cord-291946-kq0rsuxj	18	28	contaminated	contaminate	VBN
cord-291946-kq0rsuxj	18	29	with	with	IN
cord-291946-kq0rsuxj	18	30	REV	REV	NNP
cord-291946-kq0rsuxj	18	31	.	.	.
cord-291946-kq0rsuxj	19	1	Repeated	repeat	VBN
cord-291946-kq0rsuxj	19	2	passage	passage	NN
cord-291946-kq0rsuxj	19	3	of	of	IN
cord-291946-kq0rsuxj	19	4	this	this	DT
cord-291946-kq0rsuxj	19	5	virus	virus	NN
cord-291946-kq0rsuxj	19	6	in	in	IN
cord-291946-kq0rsuxj	19	7	poultry	poultry	NN
cord-291946-kq0rsuxj	19	8	adapted	adapt	VBD
cord-291946-kq0rsuxj	19	9	the	the	DT
cord-291946-kq0rsuxj	19	10	virus	virus	NN
cord-291946-kq0rsuxj	19	11	to	to	IN
cord-291946-kq0rsuxj	19	12	its	-PRON-	PRP$
cord-291946-kq0rsuxj	19	13	new	new	JJ
cord-291946-kq0rsuxj	19	14	host	host	NN
cord-291946-kq0rsuxj	19	15	.	.	.
cord-291946-kq0rsuxj	20	1	At	at	IN
cord-291946-kq0rsuxj	20	2	some	some	DT
cord-291946-kq0rsuxj	20	3	point	point	NN
cord-291946-kq0rsuxj	20	4	,	,	,
cord-291946-kq0rsuxj	20	5	the	the	DT
cord-291946-kq0rsuxj	20	6	virus	virus	NN
cord-291946-kq0rsuxj	20	7	got	get	VBD
cord-291946-kq0rsuxj	20	8	inserted	insert	VBN
cord-291946-kq0rsuxj	20	9	into	into	IN
cord-291946-kq0rsuxj	20	10	another	another	DT
cord-291946-kq0rsuxj	20	11	virus	virus	NN
cord-291946-kq0rsuxj	20	12	,	,	,
cord-291946-kq0rsuxj	20	13	called	call	VBN
cord-291946-kq0rsuxj	20	14	fowlpox	fowlpox	NNP
cord-291946-kq0rsuxj	20	15	virus	virus	NN
cord-291946-kq0rsuxj	20	16	,	,	,
cord-291946-kq0rsuxj	20	17	which	which	WDT
cord-291946-kq0rsuxj	20	18	has	have	VBZ
cord-291946-kq0rsuxj	20	19	spread	spread	VBN
cord-291946-kq0rsuxj	20	20	back	back	RB
cord-291946-kq0rsuxj	20	21	into	into	IN
cord-291946-kq0rsuxj	20	22	the	the	DT
cord-291946-kq0rsuxj	20	23	wild	wild	NN
cord-291946-kq0rsuxj	20	24	.	.	.
cord-291946-kq0rsuxj	21	1	Although	although	IN
cord-291946-kq0rsuxj	21	2	REV	REV	NNP
cord-291946-kq0rsuxj	21	3	may	may	MD
cord-291946-kq0rsuxj	21	4	still	still	RB
cord-291946-kq0rsuxj	21	5	exist	exist	VB
cord-291946-kq0rsuxj	21	6	somewhere	somewhere	RB
cord-291946-kq0rsuxj	21	7	in	in	IN
cord-291946-kq0rsuxj	21	8	a	a	DT
cord-291946-kq0rsuxj	21	9	mammalian	mammalian	JJ
cord-291946-kq0rsuxj	21	10	host	host	NN
cord-291946-kq0rsuxj	21	11	,	,	,
cord-291946-kq0rsuxj	21	12	its	-PRON-	PRP$
cord-291946-kq0rsuxj	21	13	modern	modern	JJ
cord-291946-kq0rsuxj	21	14	form	form	NN
cord-291946-kq0rsuxj	21	15	links	link	VBZ
cord-291946-kq0rsuxj	21	16	an	an	DT
cord-291946-kq0rsuxj	21	17	8	8	CD
cord-291946-kq0rsuxj	21	18	million	million	CD
cord-291946-kq0rsuxj	21	19	-	-	HYPH
cord-291946-kq0rsuxj	21	20	year	year	NN
cord-291946-kq0rsuxj	21	21	-	-	HYPH
cord-291946-kq0rsuxj	21	22	old	old	JJ
cord-291946-kq0rsuxj	21	23	infection	infection	NN
cord-291946-kq0rsuxj	21	24	of	of	IN
cord-291946-kq0rsuxj	21	25	the	the	DT
cord-291946-kq0rsuxj	21	26	ancestor	ancestor	NN
cord-291946-kq0rsuxj	21	27	of	of	IN
cord-291946-kq0rsuxj	21	28	a	a	DT
cord-291946-kq0rsuxj	21	29	mongoose	mongoose	NN
cord-291946-kq0rsuxj	21	30	to	to	IN
cord-291946-kq0rsuxj	21	31	a	a	DT
cord-291946-kq0rsuxj	21	32	virus	virus	NN
cord-291946-kq0rsuxj	21	33	that	that	WDT
cord-291946-kq0rsuxj	21	34	now	now	RB
cord-291946-kq0rsuxj	21	35	is	be	VBZ
cord-291946-kq0rsuxj	21	36	circulating	circulate	VBG
cord-291946-kq0rsuxj	21	37	in	in	IN
cord-291946-kq0rsuxj	21	38	wild	wild	JJ
cord-291946-kq0rsuxj	21	39	birds	bird	NNS
cord-291946-kq0rsuxj	21	40	through	through	IN
cord-291946-kq0rsuxj	21	41	malaria	malaria	NN
cord-291946-kq0rsuxj	21	42	studies	study	NNS
cord-291946-kq0rsuxj	21	43	in	in	IN
cord-291946-kq0rsuxj	21	44	the	the	DT
cord-291946-kq0rsuxj	21	45	mid-20	mid-20	NN
cord-291946-kq0rsuxj	21	46	th	th	XX
cord-291946-kq0rsuxj	21	47	century	century	NN
cord-291946-kq0rsuxj	21	48	.	.	.
cord-291946-kq0rsuxj	22	1	These	these	DT
cord-291946-kq0rsuxj	22	2	lessons	lesson	NNS
cord-291946-kq0rsuxj	22	3	of	of	IN
cord-291946-kq0rsuxj	22	4	ancient	ancient	JJ
cord-291946-kq0rsuxj	22	5	and	and	CC
cord-291946-kq0rsuxj	22	6	modern	modern	JJ
cord-291946-kq0rsuxj	22	7	viruses	virus	NNS
cord-291946-kq0rsuxj	22	8	have	have	VBP
cord-291946-kq0rsuxj	22	9	implications	implication	NNS
cord-291946-kq0rsuxj	22	10	for	for	IN
cord-291946-kq0rsuxj	22	11	modern	modern	JJ
cord-291946-kq0rsuxj	22	12	human	human	JJ
cord-291946-kq0rsuxj	22	13	pandemics	pandemic	NNS
cord-291946-kq0rsuxj	22	14	from	from	IN
cord-291946-kq0rsuxj	22	15	viral	viral	JJ
cord-291946-kq0rsuxj	22	16	reservoirs	reservoir	NNS
cord-291946-kq0rsuxj	22	17	and	and	CC
cord-291946-kq0rsuxj	22	18	for	for	IN
cord-291946-kq0rsuxj	22	19	human	human	JJ
cord-291946-kq0rsuxj	22	20	interventions	intervention	NNS
cord-291946-kq0rsuxj	22	21	that	that	WDT
cord-291946-kq0rsuxj	22	22	may	may	MD
cord-291946-kq0rsuxj	22	23	come	come	VB
cord-291946-kq0rsuxj	22	24	with	with	IN
cord-291946-kq0rsuxj	22	25	unintended	unintended	JJ
cord-291946-kq0rsuxj	22	26	consequences	consequence	NNS
cord-291946-kq0rsuxj	22	27	.	.	.
cord-291946-kq0rsuxj	23	1	Outbreaks	outbreak	NNS
cord-291946-kq0rsuxj	23	2	of	of	IN
cord-291946-kq0rsuxj	23	3	'	'	''
cord-291946-kq0rsuxj	23	4	'	'	``
cord-291946-kq0rsuxj	23	5	new	new	JJ
cord-291946-kq0rsuxj	23	6	'	'	''
cord-291946-kq0rsuxj	23	7	'	'	''
cord-291946-kq0rsuxj	23	8	viruses	virus	NNS
cord-291946-kq0rsuxj	23	9	are	be	VBP
cord-291946-kq0rsuxj	23	10	real	real	JJ
cord-291946-kq0rsuxj	23	11	causes	cause	NNS
cord-291946-kq0rsuxj	23	12	of	of	IN
cord-291946-kq0rsuxj	23	13	concern	concern	NN
cord-291946-kq0rsuxj	23	14	for	for	IN
cord-291946-kq0rsuxj	23	15	human	human	JJ
cord-291946-kq0rsuxj	23	16	and	and	CC
cord-291946-kq0rsuxj	23	17	animal	animal	NN
cord-291946-kq0rsuxj	23	18	health	health	NN
cord-291946-kq0rsuxj	23	19	.	.	.
cord-291946-kq0rsuxj	24	1	But	but	CC
cord-291946-kq0rsuxj	24	2	where	where	WRB
cord-291946-kq0rsuxj	24	3	do	do	VBP
cord-291946-kq0rsuxj	24	4	they	-PRON-	PRP
cord-291946-kq0rsuxj	24	5	come	come	VB
cord-291946-kq0rsuxj	24	6	from	from	IN
cord-291946-kq0rsuxj	24	7	?	?	.
cord-291946-kq0rsuxj	25	1	The	the	DT
cord-291946-kq0rsuxj	25	2	vast	vast	JJ
cord-291946-kq0rsuxj	25	3	majority	majority	NN
cord-291946-kq0rsuxj	25	4	of	of	IN
cord-291946-kq0rsuxj	25	5	emerging	emerge	VBG
cord-291946-kq0rsuxj	25	6	viruses	virus	NNS
cord-291946-kq0rsuxj	25	7	in	in	IN
cord-291946-kq0rsuxj	25	8	the	the	DT
cord-291946-kq0rsuxj	25	9	human	human	JJ
cord-291946-kq0rsuxj	25	10	population	population	NN
cord-291946-kq0rsuxj	25	11	originate	originate	VBP
cord-291946-kq0rsuxj	25	12	from	from	IN
cord-291946-kq0rsuxj	25	13	other	other	JJ
cord-291946-kq0rsuxj	25	14	animals	animal	NNS
cord-291946-kq0rsuxj	25	15	[	[	-LRB-
cord-291946-kq0rsuxj	25	16	1	1	CD
cord-291946-kq0rsuxj	25	17	]	]	-RRB-
cord-291946-kq0rsuxj	25	18	.	.	.
cord-291946-kq0rsuxj	26	1	In	in	IN
cord-291946-kq0rsuxj	26	2	fact	fact	NN
cord-291946-kq0rsuxj	26	3	,	,	,
cord-291946-kq0rsuxj	26	4	when	when	WRB
cord-291946-kq0rsuxj	26	5	a	a	DT
cord-291946-kq0rsuxj	26	6	new	new	JJ
cord-291946-kq0rsuxj	26	7	virus	virus	NN
cord-291946-kq0rsuxj	26	8	appears	appear	VBZ
cord-291946-kq0rsuxj	26	9	,	,	,
cord-291946-kq0rsuxj	26	10	it	-PRON-	PRP
cord-291946-kq0rsuxj	26	11	is	be	VBZ
cord-291946-kq0rsuxj	26	12	often	often	RB
cord-291946-kq0rsuxj	26	13	a	a	DT
cord-291946-kq0rsuxj	26	14	virus	virus	NN
cord-291946-kq0rsuxj	26	15	that	that	WDT
cord-291946-kq0rsuxj	26	16	already	already	RB
cord-291946-kq0rsuxj	26	17	exists	exist	VBZ
cord-291946-kq0rsuxj	26	18	in	in	IN
cord-291946-kq0rsuxj	26	19	one	one	CD
cord-291946-kq0rsuxj	26	20	species	specie	NNS
cord-291946-kq0rsuxj	26	21	,	,	,
cord-291946-kq0rsuxj	26	22	but	but	CC
cord-291946-kq0rsuxj	26	23	then	then	RB
cord-291946-kq0rsuxj	26	24	becomes	become	VBZ
cord-291946-kq0rsuxj	26	25	established	establish	VBN
cord-291946-kq0rsuxj	26	26	in	in	IN
cord-291946-kq0rsuxj	26	27	another	another	DT
cord-291946-kq0rsuxj	26	28	.	.	.
cord-291946-kq0rsuxj	27	1	For	for	IN
cord-291946-kq0rsuxj	27	2	example	example	NN
cord-291946-kq0rsuxj	27	3	,	,	,
cord-291946-kq0rsuxj	27	4	the	the	DT
cord-291946-kq0rsuxj	27	5	transmission	transmission	NN
cord-291946-kq0rsuxj	27	6	of	of	IN
cord-291946-kq0rsuxj	27	7	a	a	DT
cord-291946-kq0rsuxj	27	8	coronavirus	coronavirus	NN
cord-291946-kq0rsuxj	27	9	(	(	-LRB-
cord-291946-kq0rsuxj	27	10	CoV	cov	NN
cord-291946-kq0rsuxj	27	11	)	)	-RRB-
cord-291946-kq0rsuxj	27	12	from	from	IN
cord-291946-kq0rsuxj	27	13	bats	bat	NNS
cord-291946-kq0rsuxj	27	14	to	to	IN
cord-291946-kq0rsuxj	27	15	palm	palm	NN
cord-291946-kq0rsuxj	27	16	civets	civet	NNS
cord-291946-kq0rsuxj	27	17	and	and	CC
cord-291946-kq0rsuxj	27	18	raccoon	raccoon	NN
cord-291946-kq0rsuxj	27	19	dogs	dog	NNS
cord-291946-kq0rsuxj	27	20	and	and	CC
cord-291946-kq0rsuxj	27	21	ultimately	ultimately	RB
cord-291946-kq0rsuxj	27	22	to	to	IN
cord-291946-kq0rsuxj	27	23	humans	human	NNS
cord-291946-kq0rsuxj	27	24	led	lead	VBD
cord-291946-kq0rsuxj	27	25	to	to	IN
cord-291946-kq0rsuxj	27	26	the	the	DT
cord-291946-kq0rsuxj	27	27	emergence	emergence	NN
cord-291946-kq0rsuxj	27	28	of	of	IN
cord-291946-kq0rsuxj	27	29	severe	severe	JJ
cord-291946-kq0rsuxj	27	30	acute	acute	JJ
cord-291946-kq0rsuxj	27	31	respiratory	respiratory	JJ
cord-291946-kq0rsuxj	27	32	syndrome	syndrome	NN
cord-291946-kq0rsuxj	27	33	(	(	-LRB-
cord-291946-kq0rsuxj	27	34	SARS	SARS	NNP
cord-291946-kq0rsuxj	27	35	-	-	HYPH
cord-291946-kq0rsuxj	27	36	CoV	CoV	NNP
cord-291946-kq0rsuxj	27	37	)	)	-RRB-
cord-291946-kq0rsuxj	27	38	,	,	,
cord-291946-kq0rsuxj	27	39	which	which	WDT
cord-291946-kq0rsuxj	27	40	created	create	VBD
cord-291946-kq0rsuxj	27	41	an	an	DT
cord-291946-kq0rsuxj	27	42	epidemic	epidemic	NN
cord-291946-kq0rsuxj	27	43	in	in	IN
cord-291946-kq0rsuxj	27	44	2003	2003	CD
cord-291946-kq0rsuxj	27	45	,	,	,
cord-291946-kq0rsuxj	27	46	with	with	IN
cord-291946-kq0rsuxj	27	47	8,000	8,000	CD
cord-291946-kq0rsuxj	27	48	people	people	NNS
cord-291946-kq0rsuxj	27	49	infected	infect	VBN
cord-291946-kq0rsuxj	27	50	and	and	CC
cord-291946-kq0rsuxj	27	51	700	700	CD
cord-291946-kq0rsuxj	27	52	deaths	death	NNS
cord-291946-kq0rsuxj	27	53	before	before	IN
cord-291946-kq0rsuxj	27	54	it	-PRON-	PRP
cord-291946-kq0rsuxj	27	55	was	be	VBD
cord-291946-kq0rsuxj	27	56	finally	finally	RB
cord-291946-kq0rsuxj	27	57	eliminated	eliminate	VBN
cord-291946-kq0rsuxj	27	58	in	in	IN
cord-291946-kq0rsuxj	27	59	humans	human	NNS
cord-291946-kq0rsuxj	27	60	[	[	-LRB-
cord-291946-kq0rsuxj	27	61	2	2	CD
cord-291946-kq0rsuxj	27	62	]	]	-RRB-
cord-291946-kq0rsuxj	27	63	.	.	.
cord-291946-kq0rsuxj	28	1	Another	another	DT
cord-291946-kq0rsuxj	28	2	example	example	NN
cord-291946-kq0rsuxj	28	3	is	be	VBZ
cord-291946-kq0rsuxj	28	4	the	the	DT
cord-291946-kq0rsuxj	28	5	transmission	transmission	NN
cord-291946-kq0rsuxj	28	6	of	of	IN
cord-291946-kq0rsuxj	28	7	influenza	influenza	NN
cord-291946-kq0rsuxj	28	8	virus	virus	NN
cord-291946-kq0rsuxj	28	9	from	from	IN
cord-291946-kq0rsuxj	28	10	birds	bird	NNS
cord-291946-kq0rsuxj	28	11	to	to	IN
cord-291946-kq0rsuxj	28	12	mammals	mammal	NNS
cord-291946-kq0rsuxj	28	13	(	(	-LRB-
cord-291946-kq0rsuxj	28	14	pigs	pig	NNS
cord-291946-kq0rsuxj	28	15	and	and	CC
cord-291946-kq0rsuxj	28	16	humans	human	NNS
cord-291946-kq0rsuxj	28	17	)	)	-RRB-
cord-291946-kq0rsuxj	28	18	in	in	IN
cord-291946-kq0rsuxj	28	19	1918	1918	CD
cord-291946-kq0rsuxj	28	20	that	that	WDT
cord-291946-kq0rsuxj	28	21	was	be	VBD
cord-291946-kq0rsuxj	28	22	responsible	responsible	JJ
cord-291946-kq0rsuxj	28	23	for	for	IN
cord-291946-kq0rsuxj	28	24	over	over	IN
cord-291946-kq0rsuxj	28	25	100	100	CD
cord-291946-kq0rsuxj	28	26	million	million	CD
cord-291946-kq0rsuxj	28	27	deaths	death	NNS
cord-291946-kq0rsuxj	28	28	worldwide	worldwide	RB
cord-291946-kq0rsuxj	28	29	[	[	-LRB-
cord-291946-kq0rsuxj	28	30	3	3	CD
cord-291946-kq0rsuxj	28	31	]	]	-RRB-
cord-291946-kq0rsuxj	28	32	,	,	,
cord-291946-kq0rsuxj	28	33	and	and	CC
cord-291946-kq0rsuxj	28	34	many	many	JJ
cord-291946-kq0rsuxj	28	35	of	of	IN
cord-291946-kq0rsuxj	28	36	the	the	DT
cord-291946-kq0rsuxj	28	37	genes	gene	NNS
cord-291946-kq0rsuxj	28	38	from	from	IN
cord-291946-kq0rsuxj	28	39	this	this	DT
cord-291946-kq0rsuxj	28	40	virus	virus	NN
cord-291946-kq0rsuxj	28	41	continue	continue	VBP
cord-291946-kq0rsuxj	28	42	to	to	TO
cord-291946-kq0rsuxj	28	43	circulate	circulate	VB
cord-291946-kq0rsuxj	28	44	in	in	IN
cord-291946-kq0rsuxj	28	45	human	human	JJ
cord-291946-kq0rsuxj	28	46	influenza	influenza	NN
cord-291946-kq0rsuxj	28	47	to	to	IN
cord-291946-kq0rsuxj	28	48	this	this	DT
cord-291946-kq0rsuxj	28	49	day	day	NN
cord-291946-kq0rsuxj	28	50	.	.	.
cord-291946-kq0rsuxj	29	1	Whether	whether	IN
cord-291946-kq0rsuxj	29	2	or	or	CC
cord-291946-kq0rsuxj	29	3	not	not	RB
cord-291946-kq0rsuxj	29	4	a	a	DT
cord-291946-kq0rsuxj	29	5	virus	virus	NN
cord-291946-kq0rsuxj	29	6	will	will	MD
cord-291946-kq0rsuxj	29	7	'	'	''
cord-291946-kq0rsuxj	29	8	'	'	''
cord-291946-kq0rsuxj	29	9	emerge	emerge	VB
cord-291946-kq0rsuxj	29	10	'	'	''
cord-291946-kq0rsuxj	29	11	'	'	''
cord-291946-kq0rsuxj	30	1	in	in	IN
cord-291946-kq0rsuxj	30	2	new	new	JJ
cord-291946-kq0rsuxj	30	3	species	specie	NNS
cord-291946-kq0rsuxj	30	4	depends	depend	VBZ
cord-291946-kq0rsuxj	30	5	on	on	IN
cord-291946-kq0rsuxj	30	6	a	a	DT
cord-291946-kq0rsuxj	30	7	complex	complex	JJ
cord-291946-kq0rsuxj	30	8	set	set	NN
cord-291946-kq0rsuxj	30	9	of	of	IN
cord-291946-kq0rsuxj	30	10	requirements	requirement	NNS
cord-291946-kq0rsuxj	30	11	including	include	VBG
cord-291946-kq0rsuxj	30	12	contact	contact	NN
cord-291946-kq0rsuxj	30	13	,	,	,
cord-291946-kq0rsuxj	30	14	mode	mode	NN
cord-291946-kq0rsuxj	30	15	of	of	IN
cord-291946-kq0rsuxj	30	16	transmission	transmission	NN
cord-291946-kq0rsuxj	30	17	,	,	,
cord-291946-kq0rsuxj	30	18	and	and	CC
cord-291946-kq0rsuxj	30	19	adaptation	adaptation	NN
cord-291946-kq0rsuxj	30	20	to	to	IN
cord-291946-kq0rsuxj	30	21	the	the	DT
cord-291946-kq0rsuxj	30	22	new	new	JJ
cord-291946-kq0rsuxj	30	23	species	specie	NNS
cord-291946-kq0rsuxj	30	24	[	[	-LRB-
cord-291946-kq0rsuxj	30	25	4	4	CD
cord-291946-kq0rsuxj	30	26	,	,	,
cord-291946-kq0rsuxj	30	27	5	5	CD
cord-291946-kq0rsuxj	30	28	]	]	-RRB-
cord-291946-kq0rsuxj	30	29	.	.	.
cord-291946-kq0rsuxj	31	1	Moreover	moreover	RB
cord-291946-kq0rsuxj	31	2	,	,	,
cord-291946-kq0rsuxj	31	3	human	human	JJ
cord-291946-kq0rsuxj	31	4	interventions	intervention	NNS
cord-291946-kq0rsuxj	31	5	can	can	MD
cord-291946-kq0rsuxj	31	6	sometimes	sometimes	RB
cord-291946-kq0rsuxj	31	7	accidentally	accidentally	RB
cord-291946-kq0rsuxj	31	8	facilitate	facilitate	VB
cord-291946-kq0rsuxj	31	9	the	the	DT
cord-291946-kq0rsuxj	31	10	transfer	transfer	NN
cord-291946-kq0rsuxj	31	11	of	of	IN
cord-291946-kq0rsuxj	31	12	infectious	infectious	JJ
cord-291946-kq0rsuxj	31	13	agents	agent	NNS
cord-291946-kq0rsuxj	31	14	to	to	IN
cord-291946-kq0rsuxj	31	15	an	an	DT
cord-291946-kq0rsuxj	31	16	animal	animal	NN
cord-291946-kq0rsuxj	31	17	species	species	NN
cord-291946-kq0rsuxj	31	18	where	where	WRB
cord-291946-kq0rsuxj	31	19	they	-PRON-	PRP
cord-291946-kq0rsuxj	31	20	did	do	VBD
cord-291946-kq0rsuxj	31	21	not	not	RB
cord-291946-kq0rsuxj	31	22	previously	previously	RB
cord-291946-kq0rsuxj	31	23	exist	exist	VB
cord-291946-kq0rsuxj	31	24	.	.	.
cord-291946-kq0rsuxj	32	1	For	for	IN
cord-291946-kq0rsuxj	32	2	example	example	NN
cord-291946-kq0rsuxj	32	3	,	,	,
cord-291946-kq0rsuxj	32	4	the	the	DT
cord-291946-kq0rsuxj	32	5	spread	spread	NN
cord-291946-kq0rsuxj	32	6	of	of	IN
cord-291946-kq0rsuxj	32	7	'	'	''
cord-291946-kq0rsuxj	32	8	'	'	``
cord-291946-kq0rsuxj	32	9	mad	mad	JJ
cord-291946-kq0rsuxj	32	10	cow	cow	NN
cord-291946-kq0rsuxj	32	11	'	'	''
cord-291946-kq0rsuxj	32	12	'	'	''
cord-291946-kq0rsuxj	32	13	disease	disease	NN
cord-291946-kq0rsuxj	32	14	from	from	IN
cord-291946-kq0rsuxj	32	15	sheep	sheep	NNS
cord-291946-kq0rsuxj	32	16	to	to	IN
cord-291946-kq0rsuxj	32	17	cattle	cattle	NNS
cord-291946-kq0rsuxj	32	18	(	(	-LRB-
cord-291946-kq0rsuxj	32	19	and	and	CC
cord-291946-kq0rsuxj	32	20	then	then	RB
cord-291946-kq0rsuxj	32	21	subsequently	subsequently	RB
cord-291946-kq0rsuxj	32	22	to	to	IN
cord-291946-kq0rsuxj	32	23	humans	human	NNS
cord-291946-kq0rsuxj	32	24	)	)	-RRB-
cord-291946-kq0rsuxj	32	25	in	in	IN
cord-291946-kq0rsuxj	32	26	the	the	DT
cord-291946-kq0rsuxj	32	27	1980s	1980	NNS
cord-291946-kq0rsuxj	32	28	occurred	occur	VBD
cord-291946-kq0rsuxj	32	29	through	through	IN
cord-291946-kq0rsuxj	32	30	changes	change	NNS
cord-291946-kq0rsuxj	32	31	in	in	IN
cord-291946-kq0rsuxj	32	32	how	how	WRB
cord-291946-kq0rsuxj	32	33	cattle	cattle	NNS
cord-291946-kq0rsuxj	32	34	feed	feed	NN
cord-291946-kq0rsuxj	32	35	was	be	VBD
cord-291946-kq0rsuxj	32	36	prepared	prepare	VBN
cord-291946-kq0rsuxj	32	37	[	[	-LRB-
cord-291946-kq0rsuxj	32	38	6	6	CD
cord-291946-kq0rsuxj	32	39	]	]	-RRB-
cord-291946-kq0rsuxj	32	40	.	.	.
cord-291946-kq0rsuxj	33	1	In	in	IN
cord-291946-kq0rsuxj	33	2	about	about	RB
cord-291946-kq0rsuxj	33	3	the	the	DT
cord-291946-kq0rsuxj	33	4	same	same	JJ
cord-291946-kq0rsuxj	33	5	time	time	NN
cord-291946-kq0rsuxj	33	6	-	-	HYPH
cord-291946-kq0rsuxj	33	7	period	period	NN
cord-291946-kq0rsuxj	33	8	,	,	,
cord-291946-kq0rsuxj	33	9	the	the	DT
cord-291946-kq0rsuxj	33	10	spread	spread	NN
cord-291946-kq0rsuxj	33	11	of	of	IN
cord-291946-kq0rsuxj	33	12	a	a	DT
cord-291946-kq0rsuxj	33	13	relative	relative	NN
cord-291946-kq0rsuxj	33	14	of	of	IN
cord-291946-kq0rsuxj	33	15	HIV	HIV	NNP
cord-291946-kq0rsuxj	33	16	,	,	,
cord-291946-kq0rsuxj	33	17	the	the	DT
cord-291946-kq0rsuxj	33	18	simian	simian	JJ
cord-291946-kq0rsuxj	33	19	immunodeficiency	immunodeficiency	NN
cord-291946-kq0rsuxj	33	20	virus	virus	NN
cord-291946-kq0rsuxj	33	21	(	(	-LRB-
cord-291946-kq0rsuxj	33	22	SIV	SIV	NNP
cord-291946-kq0rsuxj	33	23	)	)	-RRB-
cord-291946-kq0rsuxj	33	24	,	,	,
cord-291946-kq0rsuxj	33	25	from	from	IN
cord-291946-kq0rsuxj	33	26	an	an	DT
cord-291946-kq0rsuxj	33	27	African	african	JJ
cord-291946-kq0rsuxj	33	28	monkey	monkey	NN
cord-291946-kq0rsuxj	33	29	species	specie	NNS
cord-291946-kq0rsuxj	33	30	to	to	IN
cord-291946-kq0rsuxj	33	31	a	a	DT
cord-291946-kq0rsuxj	33	32	previously	previously	RB
cord-291946-kq0rsuxj	33	33	uninfected	uninfected	JJ
cord-291946-kq0rsuxj	33	34	Asian	asian	JJ
cord-291946-kq0rsuxj	33	35	monkey	monkey	NN
cord-291946-kq0rsuxj	33	36	,	,	,
cord-291946-kq0rsuxj	33	37	took	take	VBD
cord-291946-kq0rsuxj	33	38	place	place	NN
cord-291946-kq0rsuxj	33	39	in	in	IN
cord-291946-kq0rsuxj	33	40	primate	primate	JJ
cord-291946-kq0rsuxj	33	41	centers	center	NNS
cord-291946-kq0rsuxj	33	42	in	in	IN
cord-291946-kq0rsuxj	33	43	the	the	DT
cord-291946-kq0rsuxj	33	44	United	United	NNP
cord-291946-kq0rsuxj	33	45	States	States	NNP
cord-291946-kq0rsuxj	33	46	[	[	-LRB-
cord-291946-kq0rsuxj	33	47	7	7	CD
cord-291946-kq0rsuxj	33	48	]	]	-RRB-
cord-291946-kq0rsuxj	33	49	.	.	.
cord-291946-kq0rsuxj	34	1	Even	even	RB
cord-291946-kq0rsuxj	34	2	more	more	RBR
cord-291946-kq0rsuxj	34	3	dramatically	dramatically	RB
cord-291946-kq0rsuxj	34	4	,	,	,
cord-291946-kq0rsuxj	34	5	the	the	DT
cord-291946-kq0rsuxj	34	6	epidemic	epidemic	NN
cord-291946-kq0rsuxj	34	7	appearance	appearance	NN
cord-291946-kq0rsuxj	34	8	of	of	IN
cord-291946-kq0rsuxj	34	9	seemingly	seemingly	RB
cord-291946-kq0rsuxj	34	10	'	'	''
cord-291946-kq0rsuxj	34	11	'	'	``
cord-291946-kq0rsuxj	34	12	new	new	JJ
cord-291946-kq0rsuxj	34	13	'	'	''
cord-291946-kq0rsuxj	34	14	'	'	''
cord-291946-kq0rsuxj	34	15	viruses	virus	NNS
cord-291946-kq0rsuxj	34	16	can	can	MD
cord-291946-kq0rsuxj	34	17	be	be	VB
cord-291946-kq0rsuxj	34	18	unwittingly	unwittingly	RB
cord-291946-kq0rsuxj	34	19	aided	aid	VBN
cord-291946-kq0rsuxj	34	20	by	by	IN
cord-291946-kq0rsuxj	34	21	human	human	JJ
cord-291946-kq0rsuxj	34	22	activities	activity	NNS
cord-291946-kq0rsuxj	34	23	that	that	WDT
cord-291946-kq0rsuxj	34	24	amplify	amplify	VBP
cord-291946-kq0rsuxj	34	25	previously	previously	RB
cord-291946-kq0rsuxj	34	26	rare	rare	JJ
cord-291946-kq0rsuxj	34	27	viruses	virus	NNS
cord-291946-kq0rsuxj	34	28	,	,	,
cord-291946-kq0rsuxj	34	29	as	as	IN
cord-291946-kq0rsuxj	34	30	was	be	VBD
cord-291946-kq0rsuxj	34	31	seen	see	VBN
cord-291946-kq0rsuxj	34	32	with	with	IN
cord-291946-kq0rsuxj	34	33	the	the	DT
cord-291946-kq0rsuxj	34	34	reuse	reuse	NN
cord-291946-kq0rsuxj	34	35	of	of	IN
cord-291946-kq0rsuxj	34	36	hypodermic	hypodermic	NN
cord-291946-kq0rsuxj	34	37	needles	needle	NNS
cord-291946-kq0rsuxj	34	38	in	in	IN
cord-291946-kq0rsuxj	34	39	campaigns	campaign	NNS
cord-291946-kq0rsuxj	34	40	against	against	IN
cord-291946-kq0rsuxj	34	41	schistosomiasis	schistosomiasis	NN
cord-291946-kq0rsuxj	34	42	(	(	-LRB-
cord-291946-kq0rsuxj	34	43	snail	snail	NN
cord-291946-kq0rsuxj	34	44	fever	fever	NN
cord-291946-kq0rsuxj	34	45	)	)	-RRB-
cord-291946-kq0rsuxj	34	46	that	that	WDT
cord-291946-kq0rsuxj	34	47	led	lead	VBD
cord-291946-kq0rsuxj	34	48	to	to	IN
cord-291946-kq0rsuxj	34	49	the	the	DT
cord-291946-kq0rsuxj	34	50	exponential	exponential	JJ
cord-291946-kq0rsuxj	34	51	spread	spread	NN
cord-291946-kq0rsuxj	34	52	of	of	IN
cord-291946-kq0rsuxj	34	53	hepatitis	hepatitis	NN
cord-291946-kq0rsuxj	34	54	C	C	NNP
cord-291946-kq0rsuxj	34	55	virus	virus	NN
cord-291946-kq0rsuxj	34	56	in	in	IN
cord-291946-kq0rsuxj	34	57	Egypt	Egypt	NNP
cord-291946-kq0rsuxj	34	58	in	in	IN
cord-291946-kq0rsuxj	34	59	the	the	DT
cord-291946-kq0rsuxj	34	60	mid-20th	mid-20th	NNS
cord-291946-kq0rsuxj	34	61	century	century	NN
cord-291946-kq0rsuxj	34	62	[	[	-LRB-
cord-291946-kq0rsuxj	34	63	8	8	CD
cord-291946-kq0rsuxj	34	64	]	]	-RRB-
cord-291946-kq0rsuxj	34	65	,	,	,
cord-291946-kq0rsuxj	34	66	as	as	RB
cord-291946-kq0rsuxj	34	67	well	well	RB
cord-291946-kq0rsuxj	34	68	as	as	IN
cord-291946-kq0rsuxj	34	69	similar	similar	JJ
cord-291946-kq0rsuxj	34	70	,	,	,
cord-291946-kq0rsuxj	34	71	but	but	CC
cord-291946-kq0rsuxj	34	72	more	more	RBR
cord-291946-kq0rsuxj	34	73	speculative	speculative	JJ
cord-291946-kq0rsuxj	34	74	,	,	,
cord-291946-kq0rsuxj	34	75	theories	theory	NNS
cord-291946-kq0rsuxj	34	76	for	for	IN
cord-291946-kq0rsuxj	34	77	the	the	DT
cord-291946-kq0rsuxj	34	78	amplification	amplification	NN
cord-291946-kq0rsuxj	34	79	of	of	IN
cord-291946-kq0rsuxj	34	80	HIV	HIV	NNP
cord-291946-kq0rsuxj	34	81	in	in	IN
cord-291946-kq0rsuxj	34	82	central	central	JJ
cord-291946-kq0rsuxj	34	83	Africa	Africa	NNP
cord-291946-kq0rsuxj	34	84	during	during	IN
cord-291946-kq0rsuxj	34	85	campaigns	campaign	NNS
cord-291946-kq0rsuxj	34	86	to	to	TO
cord-291946-kq0rsuxj	34	87	eliminate	eliminate	VB
cord-291946-kq0rsuxj	34	88	Trypanosoma	Trypanosoma	NNP
cord-291946-kq0rsuxj	34	89	brucei	brucei	NNP
cord-291946-kq0rsuxj	34	90	(	(	-LRB-
cord-291946-kq0rsuxj	34	91	sleeping	sleep	VBG
cord-291946-kq0rsuxj	34	92	sickness	sickness	NN
cord-291946-kq0rsuxj	34	93	)	)	-RRB-
cord-291946-kq0rsuxj	34	94	in	in	IN
cord-291946-kq0rsuxj	34	95	the	the	DT
cord-291946-kq0rsuxj	34	96	1920s	1920s	CD
cord-291946-kq0rsuxj	34	97	[	[	-LRB-
cord-291946-kq0rsuxj	34	98	9	9	CD
cord-291946-kq0rsuxj	34	99	]	]	-RRB-
cord-291946-kq0rsuxj	34	100	.	.	.
cord-291946-kq0rsuxj	35	1	Ultimately	ultimately	RB
cord-291946-kq0rsuxj	35	2	,	,	,
cord-291946-kq0rsuxj	35	3	though	though	RB
cord-291946-kq0rsuxj	35	4	,	,	,
cord-291946-kq0rsuxj	35	5	where	where	WRB
cord-291946-kq0rsuxj	35	6	did	do	VBD
cord-291946-kq0rsuxj	35	7	these	these	DT
cord-291946-kq0rsuxj	35	8	viruses	virus	NNS
cord-291946-kq0rsuxj	35	9	come	come	VB
cord-291946-kq0rsuxj	35	10	from	from	IN
cord-291946-kq0rsuxj	35	11	?	?	.
cord-291946-kq0rsuxj	36	1	Fossils	fossil	NNS
cord-291946-kq0rsuxj	36	2	of	of	IN
cord-291946-kq0rsuxj	36	3	animals	animal	NNS
cord-291946-kq0rsuxj	36	4	and	and	CC
cord-291946-kq0rsuxj	36	5	plants	plant	NNS
cord-291946-kq0rsuxj	36	6	have	have	VBP
cord-291946-kq0rsuxj	36	7	been	be	VBN
cord-291946-kq0rsuxj	36	8	used	use	VBN
cord-291946-kq0rsuxj	36	9	to	to	TO
cord-291946-kq0rsuxj	36	10	understand	understand	VB
cord-291946-kq0rsuxj	36	11	the	the	DT
cord-291946-kq0rsuxj	36	12	age	age	NN
cord-291946-kq0rsuxj	36	13	of	of	IN
cord-291946-kq0rsuxj	36	14	groups	group	NNS
cord-291946-kq0rsuxj	36	15	of	of	IN
cord-291946-kq0rsuxj	36	16	species	specie	NNS
cord-291946-kq0rsuxj	36	17	.	.	.
cord-291946-kq0rsuxj	37	1	Although	although	IN
cord-291946-kq0rsuxj	37	2	no	no	DT
cord-291946-kq0rsuxj	37	3	physical	physical	JJ
cord-291946-kq0rsuxj	37	4	fossils	fossil	NNS
cord-291946-kq0rsuxj	37	5	exist	exist	VBP
cord-291946-kq0rsuxj	37	6	for	for	IN
cord-291946-kq0rsuxj	37	7	viruses	virus	NNS
cord-291946-kq0rsuxj	37	8	,	,	,
cord-291946-kq0rsuxj	37	9	clues	clue	NNS
cord-291946-kq0rsuxj	37	10	about	about	IN
cord-291946-kq0rsuxj	37	11	virus	virus	NN
cord-291946-kq0rsuxj	37	12	history	history	NN
cord-291946-kq0rsuxj	37	13	can	can	MD
cord-291946-kq0rsuxj	37	14	be	be	VB
cord-291946-kq0rsuxj	37	15	gleaned	glean	VBN
cord-291946-kq0rsuxj	37	16	from	from	IN
cord-291946-kq0rsuxj	37	17	the	the	DT
cord-291946-kq0rsuxj	37	18	remnants	remnant	NNS
cord-291946-kq0rsuxj	37	19	of	of	IN
cord-291946-kq0rsuxj	37	20	viral	viral	JJ
cord-291946-kq0rsuxj	37	21	sequences	sequence	NNS
cord-291946-kq0rsuxj	37	22	(	(	-LRB-
cord-291946-kq0rsuxj	37	23	called	call	VBN
cord-291946-kq0rsuxj	37	24	'	'	''
cord-291946-kq0rsuxj	37	25	'	'	``
cord-291946-kq0rsuxj	37	26	viral	viral	JJ
cord-291946-kq0rsuxj	37	27	fossils	fossil	NNS
cord-291946-kq0rsuxj	37	28	'	'	POS
cord-291946-kq0rsuxj	37	29	'	'	''
cord-291946-kq0rsuxj	37	30	)	)	-RRB-
cord-291946-kq0rsuxj	37	31	that	that	WDT
cord-291946-kq0rsuxj	37	32	have	have	VBP
cord-291946-kq0rsuxj	37	33	been	be	VBN
cord-291946-kq0rsuxj	37	34	accidently	accidently	RB
cord-291946-kq0rsuxj	37	35	inherited	inherit	VBN
cord-291946-kq0rsuxj	37	36	in	in	IN
cord-291946-kq0rsuxj	37	37	the	the	DT
cord-291946-kq0rsuxj	37	38	genome	genome	NN
cord-291946-kq0rsuxj	37	39	of	of	IN
cord-291946-kq0rsuxj	37	40	the	the	DT
cord-291946-kq0rsuxj	37	41	host	host	NN
cord-291946-kq0rsuxj	37	42	they	-PRON-	PRP
cord-291946-kq0rsuxj	37	43	infected	infect	VBD
cord-291946-kq0rsuxj	37	44	in	in	IN
cord-291946-kq0rsuxj	37	45	the	the	DT
cord-291946-kq0rsuxj	37	46	past	past	NN
cord-291946-kq0rsuxj	37	47	.	.	.
cord-291946-kq0rsuxj	38	1	That	that	RB
cord-291946-kq0rsuxj	38	2	is	is	RB
cord-291946-kq0rsuxj	38	3	,	,	,
cord-291946-kq0rsuxj	38	4	although	although	IN
cord-291946-kq0rsuxj	38	5	viruses	virus	NNS
cord-291946-kq0rsuxj	38	6	typically	typically	RB
cord-291946-kq0rsuxj	38	7	spread	spread	VBN
cord-291946-kq0rsuxj	38	8	between	between	IN
cord-291946-kq0rsuxj	38	9	hosts	host	NNS
cord-291946-kq0rsuxj	38	10	by	by	IN
cord-291946-kq0rsuxj	38	11	transmission	transmission	NN
cord-291946-kq0rsuxj	38	12	from	from	IN
cord-291946-kq0rsuxj	38	13	one	one	CD
cord-291946-kq0rsuxj	38	14	individual	individual	NN
cord-291946-kq0rsuxj	38	15	to	to	IN
cord-291946-kq0rsuxj	38	16	another	another	DT
cord-291946-kq0rsuxj	38	17	(	(	-LRB-
cord-291946-kq0rsuxj	38	18	called	call	VBN
cord-291946-kq0rsuxj	38	19	horizontal	horizontal	JJ
cord-291946-kq0rsuxj	38	20	transmission	transmission	NN
cord-291946-kq0rsuxj	38	21	)	)	-RRB-
cord-291946-kq0rsuxj	38	22	,	,	,
cord-291946-kq0rsuxj	38	23	on	on	IN
cord-291946-kq0rsuxj	38	24	rare	rare	JJ
cord-291946-kq0rsuxj	38	25	occasions	occasion	NNS
cord-291946-kq0rsuxj	38	26	viral	viral	JJ
cord-291946-kq0rsuxj	38	27	nucleic	nucleic	JJ
cord-291946-kq0rsuxj	38	28	acids	acid	NNS
cord-291946-kq0rsuxj	38	29	can	can	MD
cord-291946-kq0rsuxj	38	30	get	get	VB
cord-291946-kq0rsuxj	38	31	integrated	integrate	VBN
cord-291946-kq0rsuxj	38	32	into	into	IN
cord-291946-kq0rsuxj	38	33	the	the	DT
cord-291946-kq0rsuxj	38	34	host	host	NN
cord-291946-kq0rsuxj	38	35	germline	germline	NN
cord-291946-kq0rsuxj	38	36	and	and	CC
cord-291946-kq0rsuxj	38	37	become	become	VBP
cord-291946-kq0rsuxj	38	38	endogenous	endogenous	JJ
cord-291946-kq0rsuxj	38	39	viral	viral	JJ
cord-291946-kq0rsuxj	38	40	elements	element	NNS
cord-291946-kq0rsuxj	38	41	(	(	-LRB-
cord-291946-kq0rsuxj	38	42	EVEs	EVEs	NNP
cord-291946-kq0rsuxj	38	43	)	)	-RRB-
cord-291946-kq0rsuxj	38	44	[	[	-LRB-
cord-291946-kq0rsuxj	38	45	10	10	CD
cord-291946-kq0rsuxj	38	46	]	]	-RRB-
cord-291946-kq0rsuxj	38	47	.	.	.
cord-291946-kq0rsuxj	39	1	These	these	DT
cord-291946-kq0rsuxj	39	2	EVEs	eve	NNS
cord-291946-kq0rsuxj	39	3	can	can	MD
cord-291946-kq0rsuxj	39	4	then	then	RB
cord-291946-kq0rsuxj	39	5	be	be	VB
cord-291946-kq0rsuxj	39	6	transmitted	transmit	VBN
cord-291946-kq0rsuxj	39	7	from	from	IN
cord-291946-kq0rsuxj	39	8	parent	parent	NN
cord-291946-kq0rsuxj	39	9	to	to	IN
cord-291946-kq0rsuxj	39	10	offspring	offspring	NN
cord-291946-kq0rsuxj	39	11	(	(	-LRB-
cord-291946-kq0rsuxj	39	12	called	call	VBN
cord-291946-kq0rsuxj	39	13	vertical	vertical	JJ
cord-291946-kq0rsuxj	39	14	transmission	transmission	NN
cord-291946-kq0rsuxj	39	15	)	)	-RRB-
cord-291946-kq0rsuxj	39	16	by	by	IN
cord-291946-kq0rsuxj	39	17	inheritance	inheritance	NN
cord-291946-kq0rsuxj	39	18	of	of	IN
cord-291946-kq0rsuxj	39	19	chromosomes	chromosome	NNS
cord-291946-kq0rsuxj	39	20	that	that	WDT
cord-291946-kq0rsuxj	39	21	contain	contain	VBP
cord-291946-kq0rsuxj	39	22	the	the	DT
cord-291946-kq0rsuxj	39	23	viral	viral	JJ
cord-291946-kq0rsuxj	39	24	DNA	dna	NN
cord-291946-kq0rsuxj	39	25	.	.	.
cord-291946-kq0rsuxj	40	1	At	at	IN
cord-291946-kq0rsuxj	40	2	some	some	DT
cord-291946-kq0rsuxj	40	3	rare	rare	JJ
cord-291946-kq0rsuxj	40	4	frequency	frequency	NN
cord-291946-kq0rsuxj	40	5	,	,	,
cord-291946-kq0rsuxj	40	6	these	these	DT
cord-291946-kq0rsuxj	40	7	inherited	inherit	VBN
cord-291946-kq0rsuxj	40	8	EVEs	eve	NNS
cord-291946-kq0rsuxj	40	9	become	become	VBP
cord-291946-kq0rsuxj	40	10	present	present	JJ
cord-291946-kq0rsuxj	40	11	in	in	IN
cord-291946-kq0rsuxj	40	12	all	all	DT
cord-291946-kq0rsuxj	40	13	members	member	NNS
cord-291946-kq0rsuxj	40	14	of	of	IN
cord-291946-kq0rsuxj	40	15	a	a	DT
cord-291946-kq0rsuxj	40	16	species	species	NN
cord-291946-kq0rsuxj	40	17	(	(	-LRB-
cord-291946-kq0rsuxj	40	18	called	call	VBN
cord-291946-kq0rsuxj	40	19	'	'	''
cord-291946-kq0rsuxj	40	20	'	'	``
cord-291946-kq0rsuxj	40	21	fixation	fixation	NN
cord-291946-kq0rsuxj	40	22	'	'	''
cord-291946-kq0rsuxj	40	23	'	'	''
cord-291946-kq0rsuxj	40	24	)	)	-RRB-
cord-291946-kq0rsuxj	40	25	and	and	CC
cord-291946-kq0rsuxj	40	26	will	will	MD
cord-291946-kq0rsuxj	40	27	evolve	evolve	VB
cord-291946-kq0rsuxj	40	28	along	along	IN
cord-291946-kq0rsuxj	40	29	with	with	IN
cord-291946-kq0rsuxj	40	30	the	the	DT
cord-291946-kq0rsuxj	40	31	host	host	NN
cord-291946-kq0rsuxj	40	32	genome	genome	NN
cord-291946-kq0rsuxj	40	33	over	over	IN
cord-291946-kq0rsuxj	40	34	extended	extended	JJ
cord-291946-kq0rsuxj	40	35	periods	period	NNS
cord-291946-kq0rsuxj	40	36	of	of	IN
cord-291946-kq0rsuxj	40	37	time	time	NN
cord-291946-kq0rsuxj	40	38	(	(	-LRB-
cord-291946-kq0rsuxj	40	39	Figure	figure	NN
cord-291946-kq0rsuxj	40	40	1	1	CD
cord-291946-kq0rsuxj	40	41	)	)	-RRB-
cord-291946-kq0rsuxj	40	42	.	.	.
cord-291946-kq0rsuxj	41	1	The	the	DT
cord-291946-kq0rsuxj	41	2	analyses	analysis	NNS
cord-291946-kq0rsuxj	41	3	of	of	IN
cord-291946-kq0rsuxj	41	4	the	the	DT
cord-291946-kq0rsuxj	41	5	host	host	NN
cord-291946-kq0rsuxj	41	6	genomic	genomic	JJ
cord-291946-kq0rsuxj	41	7	data	datum	NNS
cord-291946-kq0rsuxj	41	8	can	can	MD
cord-291946-kq0rsuxj	41	9	thus	thus	RB
cord-291946-kq0rsuxj	41	10	reveal	reveal	VB
cord-291946-kq0rsuxj	41	11	the	the	DT
cord-291946-kq0rsuxj	41	12	presence	presence	NN
cord-291946-kq0rsuxj	41	13	of	of	IN
cord-291946-kq0rsuxj	41	14	these	these	DT
cord-291946-kq0rsuxj	41	15	EVEs	eve	NNS
cord-291946-kq0rsuxj	41	16	,	,	,
cord-291946-kq0rsuxj	41	17	which	which	WDT
cord-291946-kq0rsuxj	41	18	represent	represent	VBP
cord-291946-kq0rsuxj	41	19	'	'	''
cord-291946-kq0rsuxj	41	20	'	'	``
cord-291946-kq0rsuxj	41	21	viral	viral	JJ
cord-291946-kq0rsuxj	41	22	fossil	fossil	NN
cord-291946-kq0rsuxj	41	23	records	record	NNS
cord-291946-kq0rsuxj	41	24	'	'	''
cord-291946-kq0rsuxj	41	25	'	'	''
cord-291946-kq0rsuxj	41	26	and	and	CC
cord-291946-kq0rsuxj	41	27	can	can	MD
cord-291946-kq0rsuxj	41	28	provide	provide	VB
cord-291946-kq0rsuxj	41	29	information	information	NN
cord-291946-kq0rsuxj	41	30	on	on	IN
cord-291946-kq0rsuxj	41	31	ancient	ancient	JJ
cord-291946-kq0rsuxj	41	32	viruses	virus	NNS
cord-291946-kq0rsuxj	41	33	;	;	:
cord-291946-kq0rsuxj	41	34	together	together	RB
cord-291946-kq0rsuxj	41	35	these	these	DT
cord-291946-kq0rsuxj	41	36	analyses	analysis	NNS
cord-291946-kq0rsuxj	41	37	are	be	VBP
cord-291946-kq0rsuxj	41	38	known	know	VBN
cord-291946-kq0rsuxj	41	39	as	as	IN
cord-291946-kq0rsuxj	41	40	'	'	``
cord-291946-kq0rsuxj	41	41	'	'	``
cord-291946-kq0rsuxj	41	42	direct	direct	JJ
cord-291946-kq0rsuxj	41	43	'	'	''
cord-291946-kq0rsuxj	41	44	'	'	``
cord-291946-kq0rsuxj	41	45	paleovirology	paleovirology	NN
cord-291946-kq0rsuxj	41	46	(	(	-LRB-
cord-291946-kq0rsuxj	41	47	in	in	IN
cord-291946-kq0rsuxj	41	48	contrast	contrast	NN
cord-291946-kq0rsuxj	41	49	to	to	IN
cord-291946-kq0rsuxj	41	50	'	'	''
cord-291946-kq0rsuxj	41	51	'	'	``
cord-291946-kq0rsuxj	41	52	indirect	indirect	JJ
cord-291946-kq0rsuxj	41	53	'	'	''
cord-291946-kq0rsuxj	41	54	'	'	''
cord-291946-kq0rsuxj	41	55	paleovirology	paleovirology	NN
cord-291946-kq0rsuxj	41	56	,	,	,
cord-291946-kq0rsuxj	41	57	which	which	WDT
cord-291946-kq0rsuxj	41	58	instead	instead	RB
cord-291946-kq0rsuxj	41	59	looks	look	VBZ
cord-291946-kq0rsuxj	41	60	at	at	IN
cord-291946-kq0rsuxj	41	61	the	the	DT
cord-291946-kq0rsuxj	41	62	consequences	consequence	NNS
cord-291946-kq0rsuxj	41	63	of	of	IN
cord-291946-kq0rsuxj	41	64	ancient	ancient	JJ
cord-291946-kq0rsuxj	41	65	viruses	virus	NNS
cord-291946-kq0rsuxj	41	66	on	on	IN
cord-291946-kq0rsuxj	41	67	the	the	DT
cord-291946-kq0rsuxj	41	68	evolution	evolution	NN
cord-291946-kq0rsuxj	41	69	of	of	IN
cord-291946-kq0rsuxj	41	70	host	host	NN
cord-291946-kq0rsuxj	41	71	genes	gene	NNS
cord-291946-kq0rsuxj	41	72	)	)	-RRB-
cord-291946-kq0rsuxj	41	73	[	[	-LRB-
cord-291946-kq0rsuxj	41	74	11	11	CD
cord-291946-kq0rsuxj	41	75	]	]	-RRB-
cord-291946-kq0rsuxj	41	76	.	.	.
cord-291946-kq0rsuxj	42	1	Determination	determination	NN
cord-291946-kq0rsuxj	42	2	of	of	IN
cord-291946-kq0rsuxj	42	3	the	the	DT
cord-291946-kq0rsuxj	42	4	presence	presence	NN
cord-291946-kq0rsuxj	42	5	or	or	CC
cord-291946-kq0rsuxj	42	6	absence	absence	NN
cord-291946-kq0rsuxj	42	7	of	of	IN
cord-291946-kq0rsuxj	42	8	shared	share	VBN
cord-291946-kq0rsuxj	42	9	EVEs	eve	NNS
cord-291946-kq0rsuxj	42	10	in	in	IN
cord-291946-kq0rsuxj	42	11	different	different	JJ
cord-291946-kq0rsuxj	42	12	species	specie	NNS
cord-291946-kq0rsuxj	42	13	can	can	MD
cord-291946-kq0rsuxj	42	14	be	be	VB
cord-291946-kq0rsuxj	42	15	used	use	VBN
cord-291946-kq0rsuxj	42	16	to	to	TO
cord-291946-kq0rsuxj	42	17	estimate	estimate	VB
cord-291946-kq0rsuxj	42	18	the	the	DT
cord-291946-kq0rsuxj	42	19	date	date	NN
cord-291946-kq0rsuxj	42	20	of	of	IN
cord-291946-kq0rsuxj	42	21	the	the	DT
cord-291946-kq0rsuxj	42	22	viral	viral	JJ
cord-291946-kq0rsuxj	42	23	insertion	insertion	NN
cord-291946-kq0rsuxj	42	24	into	into	IN
cord-291946-kq0rsuxj	42	25	the	the	DT
cord-291946-kq0rsuxj	42	26	host	host	NN
cord-291946-kq0rsuxj	42	27	genome	genome	NN
cord-291946-kq0rsuxj	42	28	[	[	-LRB-
cord-291946-kq0rsuxj	42	29	10	10	CD
cord-291946-kq0rsuxj	42	30	]	]	-RRB-
cord-291946-kq0rsuxj	42	31	and	and	CC
cord-291946-kq0rsuxj	42	32	to	to	TO
cord-291946-kq0rsuxj	42	33	infer	infer	VB
cord-291946-kq0rsuxj	42	34	the	the	DT
cord-291946-kq0rsuxj	42	35	presence	presence	NN
cord-291946-kq0rsuxj	42	36	of	of	IN
cord-291946-kq0rsuxj	42	37	an	an	DT
cord-291946-kq0rsuxj	42	38	ancient	ancient	JJ
cord-291946-kq0rsuxj	42	39	circulating	circulate	VBG
cord-291946-kq0rsuxj	42	40	virus	virus	NN
cord-291946-kq0rsuxj	42	41	among	among	IN
cord-291946-kq0rsuxj	42	42	certain	certain	JJ
cord-291946-kq0rsuxj	42	43	hosts	host	NNS
cord-291946-kq0rsuxj	42	44	over	over	IN
cord-291946-kq0rsuxj	42	45	a	a	DT
cord-291946-kq0rsuxj	42	46	very	very	RB
cord-291946-kq0rsuxj	42	47	long	long	JJ
cord-291946-kq0rsuxj	42	48	period	period	NN
cord-291946-kq0rsuxj	42	49	of	of	IN
cord-291946-kq0rsuxj	42	50	time	time	NN
cord-291946-kq0rsuxj	42	51	(	(	-LRB-
cord-291946-kq0rsuxj	42	52	Figure	figure	NN
cord-291946-kq0rsuxj	42	53	1	1	CD
cord-291946-kq0rsuxj	42	54	)	)	-RRB-
cord-291946-kq0rsuxj	42	55	.	.	.
cord-291946-kq0rsuxj	43	1	For	for	IN
cord-291946-kq0rsuxj	43	2	example	example	NN
cord-291946-kq0rsuxj	43	3	,	,	,
cord-291946-kq0rsuxj	43	4	the	the	DT
cord-291946-kq0rsuxj	43	5	analyses	analysis	NNS
cord-291946-kq0rsuxj	43	6	of	of	IN
cord-291946-kq0rsuxj	43	7	EVEs	eve	NNS
cord-291946-kq0rsuxj	43	8	among	among	IN
cord-291946-kq0rsuxj	43	9	different	different	JJ
cord-291946-kq0rsuxj	43	10	species	specie	NNS
cord-291946-kq0rsuxj	43	11	showed	show	VBD
cord-291946-kq0rsuxj	43	12	that	that	IN
cord-291946-kq0rsuxj	43	13	a	a	DT
cord-291946-kq0rsuxj	43	14	relative	relative	NN
cord-291946-kq0rsuxj	43	15	of	of	IN
cord-291946-kq0rsuxj	43	16	the	the	DT
cord-291946-kq0rsuxj	43	17	hepatitis	hepatitis	NN
cord-291946-kq0rsuxj	43	18	B	B	NNP
cord-291946-kq0rsuxj	43	19	virus	virus	NN
cord-291946-kq0rsuxj	43	20	that	that	WDT
cord-291946-kq0rsuxj	43	21	currently	currently	RB
cord-291946-kq0rsuxj	43	22	infects	infect	VBZ
cord-291946-kq0rsuxj	43	23	humans	human	NNS
cord-291946-kq0rsuxj	43	24	was	be	VBD
cord-291946-kq0rsuxj	43	25	present	present	JJ
cord-291946-kq0rsuxj	43	26	in	in	IN
cord-291946-kq0rsuxj	43	27	the	the	DT
cord-291946-kq0rsuxj	43	28	passerine	passerine	JJ
cord-291946-kq0rsuxj	43	29	birds	bird	NNS
cord-291946-kq0rsuxj	43	30	at	at	RB
cord-291946-kq0rsuxj	43	31	least	least	RBS
cord-291946-kq0rsuxj	43	32	19	19	CD
cord-291946-kq0rsuxj	43	33	million	million	CD
cord-291946-kq0rsuxj	43	34	years	year	NNS
cord-291946-kq0rsuxj	43	35	ago	ago	RB
cord-291946-kq0rsuxj	43	36	[	[	-LRB-
cord-291946-kq0rsuxj	43	37	12	12	CD
cord-291946-kq0rsuxj	43	38	]	]	-RRB-
cord-291946-kq0rsuxj	43	39	.	.	.
cord-291946-kq0rsuxj	44	1	Importantly	importantly	RB
cord-291946-kq0rsuxj	44	2	,	,	,
cord-291946-kq0rsuxj	44	3	because	because	IN
cord-291946-kq0rsuxj	44	4	integration	integration	NN
cord-291946-kq0rsuxj	44	5	in	in	IN
cord-291946-kq0rsuxj	44	6	the	the	DT
cord-291946-kq0rsuxj	44	7	host	host	NN
cord-291946-kq0rsuxj	44	8	cell	cell	NN
cord-291946-kq0rsuxj	44	9	chromosome	chromosome	NN
cord-291946-kq0rsuxj	44	10	is	be	VBZ
cord-291946-kq0rsuxj	44	11	an	an	DT
cord-291946-kq0rsuxj	44	12	obligate	obligate	JJ
cord-291946-kq0rsuxj	44	13	part	part	NN
cord-291946-kq0rsuxj	44	14	of	of	IN
cord-291946-kq0rsuxj	44	15	the	the	DT
cord-291946-kq0rsuxj	44	16	lifecycle	lifecycle	NN
cord-291946-kq0rsuxj	44	17	of	of	IN
cord-291946-kq0rsuxj	44	18	retroviruses	retrovirus	NNS
cord-291946-kq0rsuxj	44	19	,	,	,
cord-291946-kq0rsuxj	44	20	the	the	DT
cord-291946-kq0rsuxj	44	21	catalog	catalog	NN
cord-291946-kq0rsuxj	44	22	of	of	IN
cord-291946-kq0rsuxj	44	23	endogenous	endogenous	JJ
cord-291946-kq0rsuxj	44	24	retroviral	retroviral	NN
cord-291946-kq0rsuxj	44	25	elements	element	NNS
cord-291946-kq0rsuxj	44	26	provides	provide	VBZ
cord-291946-kq0rsuxj	44	27	an	an	DT
cord-291946-kq0rsuxj	44	28	especially	especially	RB
cord-291946-kq0rsuxj	44	29	rich	rich	JJ
cord-291946-kq0rsuxj	44	30	record	record	NN
cord-291946-kq0rsuxj	44	31	of	of	IN
cord-291946-kq0rsuxj	44	32	past	past	JJ
cord-291946-kq0rsuxj	44	33	retroviral	retroviral	JJ
cord-291946-kq0rsuxj	44	34	infections	infection	NNS
cord-291946-kq0rsuxj	44	35	(	(	-LRB-
cord-291946-kq0rsuxj	44	36	for	for	IN
cord-291946-kq0rsuxj	44	37	example	example	NN
cord-291946-kq0rsuxj	44	38	,	,	,
cord-291946-kq0rsuxj	44	39	[	[	-LRB-
cord-291946-kq0rsuxj	44	40	13	13	CD
cord-291946-kq0rsuxj	44	41	]	]	-RRB-
cord-291946-kq0rsuxj	44	42	)	)	-RRB-
cord-291946-kq0rsuxj	44	43	.	.	.
cord-291946-kq0rsuxj	45	1	Among	among	IN
cord-291946-kq0rsuxj	45	2	retroviruses	retrovirus	NNS
cord-291946-kq0rsuxj	45	3	,	,	,
cord-291946-kq0rsuxj	45	4	a	a	DT
cord-291946-kq0rsuxj	45	5	group	group	NN
cord-291946-kq0rsuxj	45	6	of	of	IN
cord-291946-kq0rsuxj	45	7	viruses	virus	NNS
cord-291946-kq0rsuxj	45	8	related	relate	VBN
cord-291946-kq0rsuxj	45	9	to	to	IN
cord-291946-kq0rsuxj	45	10	the	the	DT
cord-291946-kq0rsuxj	45	11	reticuloendotheliosis	reticuloendotheliosis	NN
cord-291946-kq0rsuxj	45	12	virus	virus	NN
cord-291946-kq0rsuxj	45	13	(	(	-LRB-
cord-291946-kq0rsuxj	45	14	REV	REV	NNP
cord-291946-kq0rsuxj	45	15	)	)	-RRB-
cord-291946-kq0rsuxj	45	16	has	have	VBZ
cord-291946-kq0rsuxj	45	17	especially	especially	RB
cord-291946-kq0rsuxj	45	18	interesting	interesting	JJ
cord-291946-kq0rsuxj	45	19	ancestral	ancestral	JJ
cord-291946-kq0rsuxj	45	20	origins	origin	NNS
cord-291946-kq0rsuxj	45	21	.	.	.
cord-291946-kq0rsuxj	46	1	REV	REV	NNP
cord-291946-kq0rsuxj	46	2	currently	currently	RB
cord-291946-kq0rsuxj	46	3	circulates	circulate	VBZ
cord-291946-kq0rsuxj	46	4	in	in	IN
cord-291946-kq0rsuxj	46	5	chickens	chicken	NNS
cord-291946-kq0rsuxj	46	6	,	,	,
cord-291946-kq0rsuxj	46	7	turkeys	turkey	NNS
cord-291946-kq0rsuxj	46	8	,	,	,
cord-291946-kq0rsuxj	46	9	pheasants	pheasant	NNS
cord-291946-kq0rsuxj	46	10	,	,	,
cord-291946-kq0rsuxj	46	11	ducks	duck	NNS
cord-291946-kq0rsuxj	46	12	,	,	,
cord-291946-kq0rsuxj	46	13	and	and	CC
cord-291946-kq0rsuxj	46	14	geese	goose	NNS
cord-291946-kq0rsuxj	46	15	,	,	,
cord-291946-kq0rsuxj	46	16	where	where	WRB
cord-291946-kq0rsuxj	46	17	it	-PRON-	PRP
cord-291946-kq0rsuxj	46	18	sometimes	sometimes	RB
cord-291946-kq0rsuxj	46	19	causes	cause	VBZ
cord-291946-kq0rsuxj	46	20	disease	disease	NN
cord-291946-kq0rsuxj	46	21	.	.	.
cord-291946-kq0rsuxj	47	1	However	however	RB
cord-291946-kq0rsuxj	47	2	,	,	,
cord-291946-kq0rsuxj	47	3	its	-PRON-	PRP$
cord-291946-kq0rsuxj	47	4	genome	genome	NN
cord-291946-kq0rsuxj	47	5	is	be	VBZ
cord-291946-kq0rsuxj	47	6	not	not	RB
cord-291946-kq0rsuxj	47	7	related	relate	VBN
cord-291946-kq0rsuxj	47	8	to	to	IN
cord-291946-kq0rsuxj	47	9	other	other	JJ
cord-291946-kq0rsuxj	47	10	avian	avian	JJ
cord-291946-kq0rsuxj	47	11	retroviruses	retrovirus	NNS
cord-291946-kq0rsuxj	47	12	;	;	:
cord-291946-kq0rsuxj	47	13	rather	rather	RB
cord-291946-kq0rsuxj	47	14	,	,	,
cord-291946-kq0rsuxj	47	15	it	-PRON-	PRP
cord-291946-kq0rsuxj	47	16	is	be	VBZ
cord-291946-kq0rsuxj	47	17	most	most	RBS
cord-291946-kq0rsuxj	47	18	closely	closely	RB
cord-291946-kq0rsuxj	47	19	related	related	JJ
cord-291946-kq0rsuxj	47	20	to	to	IN
cord-291946-kq0rsuxj	47	21	some	some	DT
cord-291946-kq0rsuxj	47	22	mammalian	mammalian	JJ
cord-291946-kq0rsuxj	47	23	retroviruses	retrovirus	NNS
cord-291946-kq0rsuxj	47	24	[	[	-LRB-
cord-291946-kq0rsuxj	47	25	14	14	CD
cord-291946-kq0rsuxj	47	26	]	]	-RRB-
cord-291946-kq0rsuxj	47	27	.	.	.
cord-291946-kq0rsuxj	48	1	This	this	DT
cord-291946-kq0rsuxj	48	2	is	be	VBZ
cord-291946-kq0rsuxj	48	3	unusual	unusual	JJ
cord-291946-kq0rsuxj	48	4	because	because	IN
cord-291946-kq0rsuxj	48	5	retroviral	retroviral	JJ
cord-291946-kq0rsuxj	48	6	transmissions	transmission	NNS
cord-291946-kq0rsuxj	48	7	between	between	IN
cord-291946-kq0rsuxj	48	8	different	different	JJ
cord-291946-kq0rsuxj	48	9	classes	class	NNS
cord-291946-kq0rsuxj	48	10	of	of	IN
cord-291946-kq0rsuxj	48	11	animals	animal	NNS
cord-291946-kq0rsuxj	48	12	(	(	-LRB-
cord-291946-kq0rsuxj	48	13	e.g.	e.g.	RB
cord-291946-kq0rsuxj	48	14	,	,	,
cord-291946-kq0rsuxj	48	15	between	between	IN
cord-291946-kq0rsuxj	48	16	birds	bird	NNS
cord-291946-kq0rsuxj	48	17	and	and	CC
cord-291946-kq0rsuxj	48	18	mammals	mammal	NNS
cord-291946-kq0rsuxj	48	19	)	)	-RRB-
cord-291946-kq0rsuxj	48	20	,	,	,
cord-291946-kq0rsuxj	48	21	called	call	VBN
cord-291946-kq0rsuxj	48	22	inter	inter	JJ
cord-291946-kq0rsuxj	48	23	-	-	JJ
cord-291946-kq0rsuxj	48	24	class	class	JJ
cord-291946-kq0rsuxj	48	25	transmissions	transmission	NNS
cord-291946-kq0rsuxj	48	26	,	,	,
cord-291946-kq0rsuxj	48	27	are	be	VBP
cord-291946-kq0rsuxj	48	28	much	much	RB
cord-291946-kq0rsuxj	48	29	more	more	RBR
cord-291946-kq0rsuxj	48	30	difficult	difficult	JJ
cord-291946-kq0rsuxj	48	31	than	than	IN
cord-291946-kq0rsuxj	48	32	those	those	DT
cord-291946-kq0rsuxj	48	33	between	between	IN
cord-291946-kq0rsuxj	48	34	closely	closely	RB
cord-291946-kq0rsuxj	48	35	related	relate	VBN
cord-291946-kq0rsuxj	48	36	species	specie	NNS
cord-291946-kq0rsuxj	48	37	and	and	CC
cord-291946-kq0rsuxj	48	38	are	be	VBP
cord-291946-kq0rsuxj	48	39	often	often	RB
cord-291946-kq0rsuxj	48	40	dead	dead	JJ
cord-291946-kq0rsuxj	48	41	ends	end	NNS
cord-291946-kq0rsuxj	48	42	[	[	-LRB-
cord-291946-kq0rsuxj	48	43	15	15	CD
cord-291946-kq0rsuxj	48	44	]	]	-RRB-
cord-291946-kq0rsuxj	48	45	.	.	.
cord-291946-kq0rsuxj	49	1	Indeed	indeed	RB
cord-291946-kq0rsuxj	49	2	,	,	,
cord-291946-kq0rsuxj	49	3	the	the	DT
cord-291946-kq0rsuxj	49	4	virus	virus	NN
cord-291946-kq0rsuxj	49	5	needs	need	VBZ
cord-291946-kq0rsuxj	49	6	to	to	TO
cord-291946-kq0rsuxj	49	7	adapt	adapt	VB
cord-291946-kq0rsuxj	49	8	to	to	IN
cord-291946-kq0rsuxj	49	9	large	large	JJ
cord-291946-kq0rsuxj	49	10	differences	difference	NNS
cord-291946-kq0rsuxj	49	11	between	between	IN
cord-291946-kq0rsuxj	49	12	the	the	DT
cord-291946-kq0rsuxj	49	13	host	host	NN
cord-291946-kq0rsuxj	49	14	species	species	NN
cord-291946-kq0rsuxj	49	15	that	that	WDT
cord-291946-kq0rsuxj	49	16	will	will	MD
cord-291946-kq0rsuxj	49	17	include	include	VB
cord-291946-kq0rsuxj	49	18	,	,	,
cord-291946-kq0rsuxj	49	19	among	among	IN
cord-291946-kq0rsuxj	49	20	many	many	JJ
cord-291946-kq0rsuxj	49	21	other	other	JJ
cord-291946-kq0rsuxj	49	22	things	thing	NNS
cord-291946-kq0rsuxj	49	23	,	,	,
cord-291946-kq0rsuxj	49	24	differences	difference	NNS
cord-291946-kq0rsuxj	49	25	in	in	IN
cord-291946-kq0rsuxj	49	26	the	the	DT
cord-291946-kq0rsuxj	49	27	host	host	NN
cord-291946-kq0rsuxj	49	28	cell	cell	NN
cord-291946-kq0rsuxj	49	29	receptors	receptor	NNS
cord-291946-kq0rsuxj	49	30	to	to	TO
cord-291946-kq0rsuxj	49	31	allow	allow	VB
cord-291946-kq0rsuxj	49	32	the	the	DT
cord-291946-kq0rsuxj	49	33	virus	virus	NN
cord-291946-kq0rsuxj	49	34	to	to	TO
cord-291946-kq0rsuxj	49	35	enter	enter	VB
cord-291946-kq0rsuxj	49	36	the	the	DT
cord-291946-kq0rsuxj	49	37	cells	cell	NNS
cord-291946-kq0rsuxj	49	38	,	,	,
cord-291946-kq0rsuxj	49	39	differences	difference	NNS
cord-291946-kq0rsuxj	49	40	in	in	IN
cord-291946-kq0rsuxj	49	41	the	the	DT
cord-291946-kq0rsuxj	49	42	host	host	NN
cord-291946-kq0rsuxj	49	43	cell	cell	NN
cord-291946-kq0rsuxj	49	44	environment	environment	NN
cord-291946-kq0rsuxj	49	45	(	(	-LRB-
cord-291946-kq0rsuxj	49	46	e.g.	e.g.	RB
cord-291946-kq0rsuxj	49	47	,	,	,
cord-291946-kq0rsuxj	49	48	temperature	temperature	NN
cord-291946-kq0rsuxj	49	49	)	)	-RRB-
cord-291946-kq0rsuxj	49	50	that	that	IN
cord-291946-kq0rsuxj	49	51	the	the	DT
cord-291946-kq0rsuxj	49	52	virus	virus	NN
cord-291946-kq0rsuxj	49	53	needs	need	VBZ
cord-291946-kq0rsuxj	49	54	to	to	TO
cord-291946-kq0rsuxj	49	55	replicate	replicate	VB
cord-291946-kq0rsuxj	49	56	,	,	,
cord-291946-kq0rsuxj	49	57	and	and	CC
cord-291946-kq0rsuxj	49	58	different	different	JJ
cord-291946-kq0rsuxj	49	59	sets	set	NNS
cord-291946-kq0rsuxj	49	60	of	of	IN
cord-291946-kq0rsuxj	49	61	immune	immune	JJ
cord-291946-kq0rsuxj	49	62	defense	defense	NN
cord-291946-kq0rsuxj	49	63	proteins	protein	NNS
cord-291946-kq0rsuxj	49	64	.	.	.
cord-291946-kq0rsuxj	50	1	One	one	CD
cord-291946-kq0rsuxj	50	2	hypothesis	hypothesis	NN
cord-291946-kq0rsuxj	50	3	is	be	VBZ
cord-291946-kq0rsuxj	50	4	that	that	IN
cord-291946-kq0rsuxj	50	5	REV	REV	NNP
cord-291946-kq0rsuxj	50	6	may	may	MD
cord-291946-kq0rsuxj	50	7	have	have	VB
cord-291946-kq0rsuxj	50	8	been	be	VBN
cord-291946-kq0rsuxj	50	9	aided	aid	VBN
cord-291946-kq0rsuxj	50	10	in	in	IN
cord-291946-kq0rsuxj	50	11	its	-PRON-	PRP$
cord-291946-kq0rsuxj	50	12	ability	ability	NN
cord-291946-kq0rsuxj	50	13	to	to	TO
cord-291946-kq0rsuxj	50	14	move	move	VB
cord-291946-kq0rsuxj	50	15	between	between	IN
cord-291946-kq0rsuxj	50	16	very	very	RB
cord-291946-kq0rsuxj	50	17	different	different	JJ
cord-291946-kq0rsuxj	50	18	species	specie	NNS
cord-291946-kq0rsuxj	50	19	because	because	IN
cord-291946-kq0rsuxj	50	20	it	-PRON-	PRP
cord-291946-kq0rsuxj	50	21	is	be	VBZ
cord-291946-kq0rsuxj	50	22	a	a	DT
cord-291946-kq0rsuxj	50	23	an	an	DT
cord-291946-kq0rsuxj	50	24	unusual	unusual	JJ
cord-291946-kq0rsuxj	50	25	recombinant	recombinant	JJ
cord-291946-kq0rsuxj	50	26	virus	virus	NN
cord-291946-kq0rsuxj	50	27	between	between	IN
cord-291946-kq0rsuxj	50	28	two	two	CD
cord-291946-kq0rsuxj	50	29	different	different	JJ
cord-291946-kq0rsuxj	50	30	retrovirus	retrovirus	NN
cord-291946-kq0rsuxj	50	31	genera	genera	VBP
cord-291946-kq0rsuxj	50	32	;	;	:
cord-291946-kq0rsuxj	50	33	some	some	DT
cord-291946-kq0rsuxj	50	34	of	of	IN
cord-291946-kq0rsuxj	50	35	the	the	DT
cord-291946-kq0rsuxj	50	36	REV	REV	NNP
cord-291946-kq0rsuxj	50	37	genes	gene	NNS
cord-291946-kq0rsuxj	50	38	are	be	VBP
cord-291946-kq0rsuxj	50	39	related	relate	VBN
cord-291946-kq0rsuxj	50	40	to	to	IN
cord-291946-kq0rsuxj	50	41	gammaretroviruses	gammaretroviruse	NNS
cord-291946-kq0rsuxj	50	42	,	,	,
cord-291946-kq0rsuxj	50	43	while	while	IN
cord-291946-kq0rsuxj	50	44	the	the	DT
cord-291946-kq0rsuxj	50	45	viral	viral	JJ
cord-291946-kq0rsuxj	50	46	gene	gene	NN
cord-291946-kq0rsuxj	50	47	that	that	WDT
cord-291946-kq0rsuxj	50	48	encodes	encode	VBZ
cord-291946-kq0rsuxj	50	49	the	the	DT
cord-291946-kq0rsuxj	50	50	protein	protein	NN
cord-291946-kq0rsuxj	50	51	that	that	WDT
cord-291946-kq0rsuxj	50	52	allows	allow	VBZ
cord-291946-kq0rsuxj	50	53	it	-PRON-	PRP
cord-291946-kq0rsuxj	50	54	to	to	TO
cord-291946-kq0rsuxj	50	55	enter	enter	VB
cord-291946-kq0rsuxj	50	56	cells	cell	NNS
cord-291946-kq0rsuxj	50	57	is	be	VBZ
cord-291946-kq0rsuxj	50	58	derived	derive	VBN
cord-291946-kq0rsuxj	50	59	from	from	IN
cord-291946-kq0rsuxj	50	60	beta	beta	NN
cord-291946-kq0rsuxj	50	61	-	-	HYPH
cord-291946-kq0rsuxj	50	62	retroviruses	retrovirus	NNS
cord-291946-kq0rsuxj	50	63	[	[	-LRB-
cord-291946-kq0rsuxj	50	64	14	14	CD
cord-291946-kq0rsuxj	50	65	]	]	-RRB-
cord-291946-kq0rsuxj	50	66	.	.	.
cord-291946-kq0rsuxj	51	1	There	there	EX
cord-291946-kq0rsuxj	51	2	are	be	VBP
cord-291946-kq0rsuxj	51	3	several	several	JJ
cord-291946-kq0rsuxj	51	4	important	important	JJ
cord-291946-kq0rsuxj	51	5	biological	biological	JJ
cord-291946-kq0rsuxj	51	6	differences	difference	NNS
cord-291946-kq0rsuxj	51	7	between	between	IN
cord-291946-kq0rsuxj	51	8	gammaretroviruses	gammaretroviruse	NNS
cord-291946-kq0rsuxj	51	9	and	and	CC
cord-291946-kq0rsuxj	51	10	beta	beta	NN
cord-291946-kq0rsuxj	51	11	-	-	HYPH
cord-291946-kq0rsuxj	51	12	retroviruses	retrovirus	NNS
cord-291946-kq0rsuxj	51	13	,	,	,
cord-291946-kq0rsuxj	51	14	but	but	CC
cord-291946-kq0rsuxj	51	15	one	one	NN
cord-291946-kq0rsuxj	51	16	that	that	WDT
cord-291946-kq0rsuxj	51	17	may	may	MD
cord-291946-kq0rsuxj	51	18	be	be	VB
cord-291946-kq0rsuxj	51	19	important	important	JJ
cord-291946-kq0rsuxj	51	20	in	in	IN
cord-291946-kq0rsuxj	51	21	understanding	understand	VBG
cord-291946-kq0rsuxj	51	22	the	the	DT
cord-291946-kq0rsuxj	51	23	origins	origin	NNS
cord-291946-kq0rsuxj	51	24	of	of	IN
cord-291946-kq0rsuxj	51	25	REV	REV	NNP
cord-291946-kq0rsuxj	51	26	is	be	VBZ
cord-291946-kq0rsuxj	51	27	that	that	IN
cord-291946-kq0rsuxj	51	28	the	the	DT
cord-291946-kq0rsuxj	51	29	gammaretroviruses	gammaretroviruse	NNS
cord-291946-kq0rsuxj	51	30	do	do	VBP
cord-291946-kq0rsuxj	51	31	not	not	RB
cord-291946-kq0rsuxj	51	32	generally	generally	RB
cord-291946-kq0rsuxj	51	33	undergo	undergo	VB
cord-291946-kq0rsuxj	51	34	inter	inter	JJ
cord-291946-kq0rsuxj	51	35	-	-	JJ
cord-291946-kq0rsuxj	51	36	class	class	JJ
cord-291946-kq0rsuxj	51	37	transmissions	transmission	NNS
cord-291946-kq0rsuxj	51	38	,	,	,
cord-291946-kq0rsuxj	51	39	while	while	IN
cord-291946-kq0rsuxj	51	40	the	the	DT
cord-291946-kq0rsuxj	51	41	fossil	fossil	JJ
cord-291946-kq0rsuxj	51	42	records	record	NNS
cord-291946-kq0rsuxj	51	43	of	of	IN
cord-291946-kq0rsuxj	51	44	beta	beta	NN
cord-291946-kq0rsuxj	51	45	-	-	HYPH
cord-291946-kq0rsuxj	51	46	retroviruses	retrovirus	NNS
cord-291946-kq0rsuxj	51	47	show	show	VBP
cord-291946-kq0rsuxj	51	48	more	more	JJR
cord-291946-kq0rsuxj	51	49	propensity	propensity	NN
cord-291946-kq0rsuxj	51	50	for	for	IN
cord-291946-kq0rsuxj	51	51	large	large	JJ
cord-291946-kq0rsuxj	51	52	species	specie	NNS
cord-291946-kq0rsuxj	51	53	jumps	jump	VBZ
cord-291946-kq0rsuxj	51	54	[	[	-LRB-
cord-291946-kq0rsuxj	51	55	16	16	CD
cord-291946-kq0rsuxj	51	56	]	]	-RRB-
cord-291946-kq0rsuxj	51	57	[	[	-LRB-
cord-291946-kq0rsuxj	51	58	17	17	CD
cord-291946-kq0rsuxj	51	59	]	]	-RRB-
cord-291946-kq0rsuxj	51	60	[	[	-LRB-
cord-291946-kq0rsuxj	51	61	18	18	CD
cord-291946-kq0rsuxj	51	62	]	]	-RRB-
cord-291946-kq0rsuxj	51	63	.	.	.
cord-291946-kq0rsuxj	52	1	Finally	finally	RB
cord-291946-kq0rsuxj	52	2	,	,	,
cord-291946-kq0rsuxj	52	3	REV	REV	NNP
cord-291946-kq0rsuxj	52	4	is	be	VBZ
cord-291946-kq0rsuxj	52	5	unusual	unusual	JJ
cord-291946-kq0rsuxj	52	6	in	in	IN
cord-291946-kq0rsuxj	52	7	having	have	VBG
cord-291946-kq0rsuxj	52	8	integrated	integrate	VBN
cord-291946-kq0rsuxj	52	9	itself	-PRON-	PRP
cord-291946-kq0rsuxj	52	10	into	into	IN
cord-291946-kq0rsuxj	52	11	two	two	CD
cord-291946-kq0rsuxj	52	12	other	other	JJ
cord-291946-kq0rsuxj	52	13	large	large	JJ
cord-291946-kq0rsuxj	52	14	DNA	dna	NN
cord-291946-kq0rsuxj	52	15	viruses	virus	NNS
cord-291946-kq0rsuxj	52	16	:	:	:
cord-291946-kq0rsuxj	52	17	a	a	DT
cord-291946-kq0rsuxj	52	18	herpesvirus	herpesvirus	NN
cord-291946-kq0rsuxj	52	19	,	,	,
cord-291946-kq0rsuxj	52	20	which	which	WDT
cord-291946-kq0rsuxj	52	21	replicates	replicate	VBZ
cord-291946-kq0rsuxj	52	22	in	in	IN
cord-291946-kq0rsuxj	52	23	the	the	DT
cord-291946-kq0rsuxj	52	24	nucleus	nucleus	NN
cord-291946-kq0rsuxj	52	25	,	,	,
cord-291946-kq0rsuxj	52	26	and	and	CC
cord-291946-kq0rsuxj	52	27	a	a	DT
cord-291946-kq0rsuxj	52	28	poxvirus	poxvirus	NN
cord-291946-kq0rsuxj	52	29	,	,	,
cord-291946-kq0rsuxj	52	30	which	which	WDT
cord-291946-kq0rsuxj	52	31	replicates	replicate	VBZ
cord-291946-kq0rsuxj	52	32	in	in	IN
cord-291946-kq0rsuxj	52	33	the	the	DT
cord-291946-kq0rsuxj	52	34	cytoplasm	cytoplasm	NN
cord-291946-kq0rsuxj	52	35	[	[	-LRB-
cord-291946-kq0rsuxj	52	36	19	19	CD
cord-291946-kq0rsuxj	52	37	,	,	,
cord-291946-kq0rsuxj	52	38	20	20	CD
cord-291946-kq0rsuxj	52	39	]	]	-RRB-
cord-291946-kq0rsuxj	52	40	.	.	.
cord-291946-kq0rsuxj	53	1	The	the	DT
cord-291946-kq0rsuxj	53	2	concept	concept	NN
cord-291946-kq0rsuxj	53	3	is	be	VBZ
cord-291946-kq0rsuxj	53	4	illustrated	illustrate	VBN
cord-291946-kq0rsuxj	53	5	with	with	IN
cord-291946-kq0rsuxj	53	6	the	the	DT
cord-291946-kq0rsuxj	53	7	example	example	NN
cord-291946-kq0rsuxj	53	8	of	of	IN
cord-291946-kq0rsuxj	53	9	the	the	DT
cord-291946-kq0rsuxj	53	10	viral	viral	JJ
cord-291946-kq0rsuxj	53	11	fossil	fossil	NN
cord-291946-kq0rsuxj	53	12	record	record	NN
cord-291946-kq0rsuxj	53	13	and	and	CC
cord-291946-kq0rsuxj	53	14	evolutionary	evolutionary	JJ
cord-291946-kq0rsuxj	53	15	history	history	NN
cord-291946-kq0rsuxj	53	16	of	of	IN
cord-291946-kq0rsuxj	53	17	the	the	DT
cord-291946-kq0rsuxj	53	18	reticuloendotheliosis	reticuloendotheliosis	NNP
cord-291946-kq0rsuxj	53	19	virus	virus	NN
cord-291946-kq0rsuxj	53	20	(	(	-LRB-
cord-291946-kq0rsuxj	53	21	REV	REV	NNP
cord-291946-kq0rsuxj	53	22	)	)	-RRB-
cord-291946-kq0rsuxj	53	23	.	.	.
cord-291946-kq0rsuxj	54	1	The	the	DT
cord-291946-kq0rsuxj	54	2	tree	tree	NN
cord-291946-kq0rsuxj	54	3	is	be	VBZ
cord-291946-kq0rsuxj	54	4	a	a	DT
cord-291946-kq0rsuxj	54	5	timescaled	timescaled	JJ
cord-291946-kq0rsuxj	54	6	representation	representation	NN
cord-291946-kq0rsuxj	54	7	of	of	IN
cord-291946-kq0rsuxj	54	8	a	a	DT
cord-291946-kq0rsuxj	54	9	host	host	NN
cord-291946-kq0rsuxj	54	10	genome	genome	NN
cord-291946-kq0rsuxj	54	11	phylogeny	phylogeny	NN
cord-291946-kq0rsuxj	54	12	.	.	.
cord-291946-kq0rsuxj	55	1	Hosts	host	NNS
cord-291946-kq0rsuxj	55	2	for	for	IN
cord-291946-kq0rsuxj	55	3	which	which	WDT
cord-291946-kq0rsuxj	55	4	genomic	genomic	JJ
cord-291946-kq0rsuxj	55	5	sequences	sequence	NNS
cord-291946-kq0rsuxj	55	6	are	be	VBP
cord-291946-kq0rsuxj	55	7	available	available	JJ
cord-291946-kq0rsuxj	55	8	are	be	VBP
cord-291946-kq0rsuxj	55	9	depicted	depict	VBN
cord-291946-kq0rsuxj	55	10	in	in	IN
cord-291946-kq0rsuxj	55	11	white	white	JJ
cord-291946-kq0rsuxj	55	12	,	,	,
cord-291946-kq0rsuxj	55	13	while	while	IN
cord-291946-kq0rsuxj	55	14	hosts	host	NNS
cord-291946-kq0rsuxj	55	15	that	that	WDT
cord-291946-kq0rsuxj	55	16	do	do	VBP
cord-291946-kq0rsuxj	55	17	not	not	RB
cord-291946-kq0rsuxj	55	18	have	have	VB
cord-291946-kq0rsuxj	55	19	genome	genome	NN
cord-291946-kq0rsuxj	55	20	data	datum	NNS
cord-291946-kq0rsuxj	55	21	available	available	JJ
cord-291946-kq0rsuxj	55	22	are	be	VBP
cord-291946-kq0rsuxj	55	23	represented	represent	VBN
cord-291946-kq0rsuxj	55	24	in	in	IN
cord-291946-kq0rsuxj	55	25	plain	plain	JJ
cord-291946-kq0rsuxj	55	26	black	black	NN
cord-291946-kq0rsuxj	55	27	.	.	.
cord-291946-kq0rsuxj	56	1	The	the	DT
cord-291946-kq0rsuxj	56	2	hosts	host	NNS
cord-291946-kq0rsuxj	56	3	that	that	WDT
cord-291946-kq0rsuxj	56	4	harbor	harbor	VBP
cord-291946-kq0rsuxj	56	5	a	a	DT
cord-291946-kq0rsuxj	56	6	REV	REV	NNP
cord-291946-kq0rsuxj	56	7	-	-	HYPH
cord-291946-kq0rsuxj	56	8	like	like	JJ
cord-291946-kq0rsuxj	56	9	endogenous	endogenous	JJ
cord-291946-kq0rsuxj	56	10	element	element	NN
cord-291946-kq0rsuxj	56	11	are	be	VBP
cord-291946-kq0rsuxj	56	12	depicted	depict	VBN
cord-291946-kq0rsuxj	56	13	,	,	,
cord-291946-kq0rsuxj	56	14	as	as	RB
cord-291946-kq0rsuxj	56	15	well	well	RB
cord-291946-kq0rsuxj	56	16	as	as	IN
cord-291946-kq0rsuxj	56	17	those	those	DT
cord-291946-kq0rsuxj	56	18	from	from	IN
cord-291946-kq0rsuxj	56	19	which	which	WDT
cord-291946-kq0rsuxj	56	20	information	information	NN
cord-291946-kq0rsuxj	56	21	is	be	VBZ
cord-291946-kq0rsuxj	56	22	not	not	RB
cord-291946-kq0rsuxj	56	23	available	available	JJ
cord-291946-kq0rsuxj	56	24	(	(	-LRB-
cord-291946-kq0rsuxj	56	25	question	question	NN
cord-291946-kq0rsuxj	56	26	marks	mark	NNS
cord-291946-kq0rsuxj	56	27	)	)	-RRB-
cord-291946-kq0rsuxj	56	28	and	and	CC
cord-291946-kq0rsuxj	56	29	others	other	NNS
cord-291946-kq0rsuxj	56	30	from	from	IN
cord-291946-kq0rsuxj	56	31	which	which	WDT
cord-291946-kq0rsuxj	56	32	the	the	DT
cord-291946-kq0rsuxj	56	33	EVE	EVE	NNP
cord-291946-kq0rsuxj	56	34	is	be	VBZ
cord-291946-kq0rsuxj	56	35	absent	absent	JJ
cord-291946-kq0rsuxj	56	36	.	.	.
cord-291946-kq0rsuxj	57	1	Regions	region	NNS
cord-291946-kq0rsuxj	57	2	in	in	IN
cord-291946-kq0rsuxj	57	3	green	green	JJ
cord-291946-kq0rsuxj	57	4	represent	represent	VBP
cord-291946-kq0rsuxj	57	5	the	the	DT
cord-291946-kq0rsuxj	57	6	EVE	EVE	NNP
cord-291946-kq0rsuxj	57	7	flanking	flank	VBG
cord-291946-kq0rsuxj	57	8	region	region	NN
cord-291946-kq0rsuxj	57	9	.	.	.
cord-291946-kq0rsuxj	58	1	The	the	DT
cord-291946-kq0rsuxj	58	2	time	time	NN
cord-291946-kq0rsuxj	58	3	frame	frame	NN
cord-291946-kq0rsuxj	58	4	in	in	IN
cord-291946-kq0rsuxj	58	5	which	which	WDT
cord-291946-kq0rsuxj	58	6	an	an	DT
cord-291946-kq0rsuxj	58	7	exogenous	exogenous	JJ
cord-291946-kq0rsuxj	58	8	mammalian	mammalian	JJ
cord-291946-kq0rsuxj	58	9	virus	virus	NN
cord-291946-kq0rsuxj	58	10	(	(	-LRB-
cord-291946-kq0rsuxj	58	11	1	1	CD
cord-291946-kq0rsuxj	58	12	)	)	-RRB-
cord-291946-kq0rsuxj	58	13	,	,	,
cord-291946-kq0rsuxj	58	14	here	here	RB
cord-291946-kq0rsuxj	58	15	REV	REV	NNP
cord-291946-kq0rsuxj	58	16	,	,	,
cord-291946-kq0rsuxj	58	17	integrated	integrate	VBN
cord-291946-kq0rsuxj	58	18	in	in	IN
cord-291946-kq0rsuxj	58	19	the	the	DT
cord-291946-kq0rsuxj	58	20	host	host	NN
cord-291946-kq0rsuxj	58	21	germline	germline	NN
cord-291946-kq0rsuxj	58	22	(	(	-LRB-
cord-291946-kq0rsuxj	58	23	2	2	CD
cord-291946-kq0rsuxj	58	24	)	)	-RRB-
cord-291946-kq0rsuxj	58	25	and	and	CC
cord-291946-kq0rsuxj	58	26	reached	reach	VBN
cord-291946-kq0rsuxj	58	27	fixation	fixation	NN
cord-291946-kq0rsuxj	58	28	(	(	-LRB-
cord-291946-kq0rsuxj	58	29	3	3	CD
cord-291946-kq0rsuxj	58	30	)	)	-RRB-
cord-291946-kq0rsuxj	58	31	is	be	VBZ
cord-291946-kq0rsuxj	58	32	represented	represent	VBN
cord-291946-kq0rsuxj	58	33	.	.	.
cord-291946-kq0rsuxj	59	1	The	the	DT
cord-291946-kq0rsuxj	59	2	presence	presence	NN
cord-291946-kq0rsuxj	59	3	of	of	IN
cord-291946-kq0rsuxj	59	4	related	related	JJ
cord-291946-kq0rsuxj	59	5	EVEs	eve	NNS
cord-291946-kq0rsuxj	59	6	at	at	IN
cord-291946-kq0rsuxj	59	7	the	the	DT
cord-291946-kq0rsuxj	59	8	same	same	JJ
cord-291946-kq0rsuxj	59	9	locus	locus	NN
cord-291946-kq0rsuxj	59	10	in	in	IN
cord-291946-kq0rsuxj	59	11	both	both	DT
cord-291946-kq0rsuxj	59	12	mongoose	mongoose	NN
cord-291946-kq0rsuxj	59	13	species	specie	NNS
cord-291946-kq0rsuxj	59	14	shows	show	VBZ
cord-291946-kq0rsuxj	59	15	that	that	IN
cord-291946-kq0rsuxj	59	16	the	the	DT
cord-291946-kq0rsuxj	59	17	insertion	insertion	NN
cord-291946-kq0rsuxj	59	18	occurred	occur	VBD
cord-291946-kq0rsuxj	59	19	before	before	IN
cord-291946-kq0rsuxj	59	20	their	-PRON-	PRP$
cord-291946-kq0rsuxj	59	21	divergence	divergence	NN
cord-291946-kq0rsuxj	59	22	,	,	,
cord-291946-kq0rsuxj	59	23	approximately	approximately	RB
cord-291946-kq0rsuxj	59	24	8	8	CD
cord-291946-kq0rsuxj	59	25	million	million	CD
cord-291946-kq0rsuxj	59	26	years	year	NNS
cord-291946-kq0rsuxj	59	27	ago	ago	RB
cord-291946-kq0rsuxj	59	28	(	(	-LRB-
cord-291946-kq0rsuxj	59	29	MYA	MYA	NNP
cord-291946-kq0rsuxj	59	30	)	)	-RRB-
cord-291946-kq0rsuxj	59	31	,	,	,
cord-291946-kq0rsuxj	59	32	while	while	IN
cord-291946-kq0rsuxj	59	33	the	the	DT
cord-291946-kq0rsuxj	59	34	absence	absence	NN
cord-291946-kq0rsuxj	59	35	of	of	IN
cord-291946-kq0rsuxj	59	36	EVE	EVE	NNP
cord-291946-kq0rsuxj	59	37	at	at	IN
cord-291946-kq0rsuxj	59	38	this	this	DT
cord-291946-kq0rsuxj	59	39	site	site	NN
cord-291946-kq0rsuxj	59	40	in	in	IN
cord-291946-kq0rsuxj	59	41	the	the	DT
cord-291946-kq0rsuxj	59	42	cat	cat	NN
cord-291946-kq0rsuxj	59	43	species	specie	NNS
cord-291946-kq0rsuxj	59	44	indicates	indicate	VBZ
cord-291946-kq0rsuxj	59	45	that	that	IN
cord-291946-kq0rsuxj	59	46	the	the	DT
cord-291946-kq0rsuxj	59	47	insertion	insertion	NN
cord-291946-kq0rsuxj	59	48	occurred	occur	VBD
cord-291946-kq0rsuxj	59	49	after	after	IN
cord-291946-kq0rsuxj	59	50	36	36	CD
cord-291946-kq0rsuxj	59	51	MYA	MYA	NNP
cord-291946-kq0rsuxj	59	52	.	.	.
cord-291946-kq0rsuxj	60	1	Although	although	IN
cord-291946-kq0rsuxj	60	2	not	not	RB
cord-291946-kq0rsuxj	60	3	definitive	definitive	JJ
cord-291946-kq0rsuxj	60	4	,	,	,
cord-291946-kq0rsuxj	60	5	PCR	PCR	NNP
cord-291946-kq0rsuxj	60	6	for	for	IN
cord-291946-kq0rsuxj	60	7	REV	REV	NNP
cord-291946-kq0rsuxj	60	8	in	in	IN
cord-291946-kq0rsuxj	60	9	fossa	fossa	NN
cord-291946-kq0rsuxj	60	10	was	be	VBD
cord-291946-kq0rsuxj	60	11	negative	negative	JJ
cord-291946-kq0rsuxj	60	12	[	[	-LRB-
cord-291946-kq0rsuxj	60	13	21	21	CD
cord-291946-kq0rsuxj	60	14	]	]	-RRB-
cord-291946-kq0rsuxj	60	15	.	.	.
cord-291946-kq0rsuxj	61	1	Here	here	RB
cord-291946-kq0rsuxj	61	2	,	,	,
cord-291946-kq0rsuxj	61	3	a	a	DT
cord-291946-kq0rsuxj	61	4	more	more	RBR
cord-291946-kq0rsuxj	61	5	recent	recent	JJ
cord-291946-kq0rsuxj	61	6	inter	inter	JJ
cord-291946-kq0rsuxj	61	7	-	-	JJ
cord-291946-kq0rsuxj	61	8	class	class	JJ
cord-291946-kq0rsuxj	61	9	transmission	transmission	NN
cord-291946-kq0rsuxj	61	10	from	from	IN
cord-291946-kq0rsuxj	61	11	an	an	DT
cord-291946-kq0rsuxj	61	12	unknown	unknown	JJ
cord-291946-kq0rsuxj	61	13	mammal	mammal	NN
cord-291946-kq0rsuxj	61	14	was	be	VBD
cord-291946-kq0rsuxj	61	15	the	the	DT
cord-291946-kq0rsuxj	61	16	origin	origin	NN
cord-291946-kq0rsuxj	61	17	of	of	IN
cord-291946-kq0rsuxj	61	18	REV	REV	NNP
cord-291946-kq0rsuxj	61	19	in	in	IN
cord-291946-kq0rsuxj	61	20	birds	bird	NNS
cord-291946-kq0rsuxj	61	21	.	.	.
cord-291946-kq0rsuxj	62	1	Image	image	NN
cord-291946-kq0rsuxj	62	2	Credit	Credit	NNP
cord-291946-kq0rsuxj	62	3	:	:	:
cord-291946-kq0rsuxj	62	4	Lucie	Lucie	NNP
cord-291946-kq0rsuxj	62	5	Etienne	Etienne	NNP
cord-291946-kq0rsuxj	62	6	.	.	.
cord-291946-kq0rsuxj	63	1	doi:10.1371	doi:10.1371	NNP
cord-291946-kq0rsuxj	64	1	/journal.pbio.1001641.g001	/journal.pbio.1001641.g001	.
cord-291946-kq0rsuxj	65	1	In	in	IN
cord-291946-kq0rsuxj	65	2	this	this	DT
cord-291946-kq0rsuxj	65	3	issue	issue	NN
cord-291946-kq0rsuxj	65	4	of	of	IN
cord-291946-kq0rsuxj	65	5	PLOS	PLOS	NNP
cord-291946-kq0rsuxj	65	6	Biology	Biology	NNP
cord-291946-kq0rsuxj	65	7	,	,	,
cord-291946-kq0rsuxj	65	8	Niewiadomska	Niewiadomska	NNP
cord-291946-kq0rsuxj	65	9	and	and	CC
cord-291946-kq0rsuxj	65	10	Gifford	Gifford	NNP
cord-291946-kq0rsuxj	65	11	elucidate	elucidate	VBP
cord-291946-kq0rsuxj	65	12	the	the	DT
cord-291946-kq0rsuxj	65	13	complex	complex	JJ
cord-291946-kq0rsuxj	65	14	evolutionary	evolutionary	JJ
cord-291946-kq0rsuxj	65	15	history	history	NN
cord-291946-kq0rsuxj	65	16	of	of	IN
cord-291946-kq0rsuxj	65	17	REV	REV	NNP
cord-291946-kq0rsuxj	65	18	and	and	CC
cord-291946-kq0rsuxj	65	19	related	relate	VBN
cord-291946-kq0rsuxj	65	20	viral	viral	JJ
cord-291946-kq0rsuxj	65	21	strains	strain	NNS
cord-291946-kq0rsuxj	65	22	by	by	IN
cord-291946-kq0rsuxj	65	23	using	use	VBG
cord-291946-kq0rsuxj	65	24	paleovirology	paleovirology	NN
cord-291946-kq0rsuxj	65	25	and	and	CC
cord-291946-kq0rsuxj	65	26	a	a	DT
cord-291946-kq0rsuxj	65	27	historical	historical	JJ
cord-291946-kq0rsuxj	65	28	review	review	NN
cord-291946-kq0rsuxj	65	29	of	of	IN
cord-291946-kq0rsuxj	65	30	the	the	DT
cord-291946-kq0rsuxj	65	31	literature	literature	NN
cord-291946-kq0rsuxj	65	32	to	to	TO
cord-291946-kq0rsuxj	65	33	infer	infer	VB
cord-291946-kq0rsuxj	65	34	the	the	DT
cord-291946-kq0rsuxj	65	35	viral	viral	JJ
cord-291946-kq0rsuxj	65	36	origin	origin	NN
cord-291946-kq0rsuxj	65	37	,	,	,
cord-291946-kq0rsuxj	65	38	the	the	DT
cord-291946-kq0rsuxj	65	39	successive	successive	JJ
cord-291946-kq0rsuxj	65	40	inter	inter	JJ
cord-291946-kq0rsuxj	65	41	-	-	JJ
cord-291946-kq0rsuxj	65	42	species	species	JJ
cord-291946-kq0rsuxj	65	43	transmissions	transmission	NNS
cord-291946-kq0rsuxj	65	44	,	,	,
cord-291946-kq0rsuxj	65	45	and	and	CC
cord-291946-kq0rsuxj	65	46	the	the	DT
cord-291946-kq0rsuxj	65	47	adaptive	adaptive	JJ
cord-291946-kq0rsuxj	65	48	events	event	NNS
cord-291946-kq0rsuxj	65	49	that	that	WDT
cord-291946-kq0rsuxj	65	50	led	lead	VBD
cord-291946-kq0rsuxj	65	51	to	to	IN
cord-291946-kq0rsuxj	65	52	the	the	DT
cord-291946-kq0rsuxj	65	53	circulation	circulation	NN
cord-291946-kq0rsuxj	65	54	of	of	IN
cord-291946-kq0rsuxj	65	55	REVs	rev	NNS
cord-291946-kq0rsuxj	65	56	in	in	IN
cord-291946-kq0rsuxj	65	57	wild	wild	JJ
cord-291946-kq0rsuxj	65	58	birds	bird	NNS
cord-291946-kq0rsuxj	65	59	[	[	-LRB-
cord-291946-kq0rsuxj	65	60	21	21	CD
cord-291946-kq0rsuxj	65	61	]	]	-RRB-
cord-291946-kq0rsuxj	65	62	.	.	.
cord-291946-kq0rsuxj	66	1	Along	along	IN
cord-291946-kq0rsuxj	66	2	the	the	DT
cord-291946-kq0rsuxj	66	3	way	way	NN
cord-291946-kq0rsuxj	66	4	,	,	,
cord-291946-kq0rsuxj	66	5	the	the	DT
cord-291946-kq0rsuxj	66	6	story	story	NN
cord-291946-kq0rsuxj	66	7	takes	take	VBZ
cord-291946-kq0rsuxj	66	8	us	-PRON-	PRP
cord-291946-kq0rsuxj	66	9	from	from	IN
cord-291946-kq0rsuxj	66	10	a	a	DT
cord-291946-kq0rsuxj	66	11	mongoose	mongoose	NN
cord-291946-kq0rsuxj	66	12	,	,	,
cord-291946-kq0rsuxj	66	13	to	to	IN
cord-291946-kq0rsuxj	66	14	a	a	DT
cord-291946-kq0rsuxj	66	15	pheasant	pheasant	NN
cord-291946-kq0rsuxj	66	16	at	at	IN
cord-291946-kq0rsuxj	66	17	the	the	DT
cord-291946-kq0rsuxj	66	18	Bronx	Bronx	NNP
cord-291946-kq0rsuxj	66	19	Zoo	Zoo	NNP
cord-291946-kq0rsuxj	66	20	,	,	,
cord-291946-kq0rsuxj	66	21	to	to	IN
cord-291946-kq0rsuxj	66	22	a	a	DT
cord-291946-kq0rsuxj	66	23	duck	duck	NN
cord-291946-kq0rsuxj	66	24	model	model	NN
cord-291946-kq0rsuxj	66	25	of	of	IN
cord-291946-kq0rsuxj	66	26	malaria	malaria	NN
cord-291946-kq0rsuxj	66	27	that	that	WDT
cord-291946-kq0rsuxj	66	28	might	may	MD
cord-291946-kq0rsuxj	66	29	have	have	VB
cord-291946-kq0rsuxj	66	30	led	lead	VBN
cord-291946-kq0rsuxj	66	31	to	to	IN
cord-291946-kq0rsuxj	66	32	contamination	contamination	NN
cord-291946-kq0rsuxj	66	33	of	of	IN
cord-291946-kq0rsuxj	66	34	vaccines	vaccine	NNS
cord-291946-kq0rsuxj	66	35	of	of	IN
cord-291946-kq0rsuxj	66	36	large	large	JJ
cord-291946-kq0rsuxj	66	37	DNA	dna	NN
cord-291946-kq0rsuxj	66	38	viruses	virus	NNS
cord-291946-kq0rsuxj	66	39	of	of	IN
cord-291946-kq0rsuxj	66	40	birds	bird	NNS
cord-291946-kq0rsuxj	66	41	,	,	,
cord-291946-kq0rsuxj	66	42	which	which	WDT
cord-291946-kq0rsuxj	66	43	may	may	MD
cord-291946-kq0rsuxj	66	44	have	have	VB
cord-291946-kq0rsuxj	66	45	subsequently	subsequently	RB
cord-291946-kq0rsuxj	66	46	spread	spread	VB
cord-291946-kq0rsuxj	66	47	REV	REV	NNP
cord-291946-kq0rsuxj	66	48	around	around	IN
cord-291946-kq0rsuxj	66	49	the	the	DT
cord-291946-kq0rsuxj	66	50	world	world	NN
cord-291946-kq0rsuxj	66	51	.	.	.
cord-291946-kq0rsuxj	67	1	The	the	DT
cord-291946-kq0rsuxj	67	2	link	link	NN
cord-291946-kq0rsuxj	67	3	between	between	IN
cord-291946-kq0rsuxj	67	4	this	this	DT
cord-291946-kq0rsuxj	67	5	avian	avian	JJ
cord-291946-kq0rsuxj	67	6	retrovirus	retrovirus	NN
cord-291946-kq0rsuxj	67	7	and	and	CC
cord-291946-kq0rsuxj	67	8	endogenous	endogenous	JJ
cord-291946-kq0rsuxj	67	9	elements	element	NNS
cord-291946-kq0rsuxj	67	10	in	in	IN
cord-291946-kq0rsuxj	67	11	mammals	mammal	NNS
cord-291946-kq0rsuxj	67	12	was	be	VBD
cord-291946-kq0rsuxj	67	13	first	first	RB
cord-291946-kq0rsuxj	67	14	documented	document	VBN
cord-291946-kq0rsuxj	67	15	in	in	IN
cord-291946-kq0rsuxj	67	16	a	a	DT
cord-291946-kq0rsuxj	67	17	screen	screen	NN
cord-291946-kq0rsuxj	67	18	of	of	IN
cord-291946-kq0rsuxj	67	19	available	available	JJ
cord-291946-kq0rsuxj	67	20	animal	animal	NN
cord-291946-kq0rsuxj	67	21	genomes	genome	NNS
cord-291946-kq0rsuxj	67	22	in	in	IN
cord-291946-kq0rsuxj	67	23	which	which	WDT
cord-291946-kq0rsuxj	67	24	the	the	DT
cord-291946-kq0rsuxj	67	25	most	most	RBS
cord-291946-kq0rsuxj	67	26	closely	closely	RB
cord-291946-kq0rsuxj	67	27	related	related	JJ
cord-291946-kq0rsuxj	67	28	sequence	sequence	NN
cord-291946-kq0rsuxj	67	29	to	to	IN
cord-291946-kq0rsuxj	67	30	REV	REV	NNP
cord-291946-kq0rsuxj	67	31	was	be	VBD
cord-291946-kq0rsuxj	67	32	from	from	IN
cord-291946-kq0rsuxj	67	33	a	a	DT
cord-291946-kq0rsuxj	67	34	fragment	fragment	NN
cord-291946-kq0rsuxj	67	35	of	of	IN
cord-291946-kq0rsuxj	67	36	the	the	DT
cord-291946-kq0rsuxj	67	37	genome	genome	NN
cord-291946-kq0rsuxj	67	38	of	of	IN
cord-291946-kq0rsuxj	67	39	an	an	DT
cord-291946-kq0rsuxj	67	40	echidna	echidna	NN
cord-291946-kq0rsuxj	67	41	,	,	,
cord-291946-kq0rsuxj	67	42	an	an	DT
cord-291946-kq0rsuxj	67	43	egg	egg	NN
cord-291946-kq0rsuxj	67	44	-	-	HYPH
cord-291946-kq0rsuxj	67	45	laying	lay	VBG
cord-291946-kq0rsuxj	67	46	mammal	mammal	NN
cord-291946-kq0rsuxj	67	47	from	from	IN
cord-291946-kq0rsuxj	67	48	Australasia	Australasia	NNP
cord-291946-kq0rsuxj	67	49	[	[	-LRB-
cord-291946-kq0rsuxj	67	50	14	14	CD
cord-291946-kq0rsuxj	67	51	]	]	-RRB-
cord-291946-kq0rsuxj	67	52	.	.	.
cord-291946-kq0rsuxj	68	1	Niewiadomska	Niewiadomska	NNP
cord-291946-kq0rsuxj	68	2	and	and	CC
cord-291946-kq0rsuxj	68	3	Gifford	Gifford	NNP
cord-291946-kq0rsuxj	68	4	were	be	VBD
cord-291946-kq0rsuxj	68	5	characterizing	characterize	VBG
cord-291946-kq0rsuxj	68	6	the	the	DT
cord-291946-kq0rsuxj	68	7	diversity	diversity	NN
cord-291946-kq0rsuxj	68	8	of	of	IN
cord-291946-kq0rsuxj	68	9	endogenous	endogenous	JJ
cord-291946-kq0rsuxj	68	10	retroviral	retroviral	JJ
cord-291946-kq0rsuxj	68	11	elements	element	NNS
cord-291946-kq0rsuxj	68	12	in	in	IN
cord-291946-kq0rsuxj	68	13	Malagasy	Malagasy	NNP
cord-291946-kq0rsuxj	68	14	carnivores	carnivore	NNS
cord-291946-kq0rsuxj	68	15	using	use	VBG
cord-291946-kq0rsuxj	68	16	previously	previously	RB
cord-291946-kq0rsuxj	68	17	frozen	frozen	JJ
cord-291946-kq0rsuxj	68	18	tissue	tissue	NN
cord-291946-kq0rsuxj	68	19	samples	sample	NNS
cord-291946-kq0rsuxj	68	20	,	,	,
cord-291946-kq0rsuxj	68	21	and	and	CC
cord-291946-kq0rsuxj	68	22	fortuitously	fortuitously	RB
cord-291946-kq0rsuxj	68	23	happened	happen	VBD
cord-291946-kq0rsuxj	68	24	upon	upon	IN
cord-291946-kq0rsuxj	68	25	REV	REV	NNP
cord-291946-kq0rsuxj	68	26	-	-	HYPH
cord-291946-kq0rsuxj	68	27	like	like	JJ
cord-291946-kq0rsuxj	68	28	sequences	sequence	NNS
cord-291946-kq0rsuxj	68	29	in	in	IN
cord-291946-kq0rsuxj	68	30	the	the	DT
cord-291946-kq0rsuxj	68	31	genome	genome	NN
cord-291946-kq0rsuxj	68	32	of	of	IN
cord-291946-kq0rsuxj	68	33	the	the	DT
cord-291946-kq0rsuxj	68	34	ring	ring	NN
cord-291946-kq0rsuxj	68	35	-	-	HYPH
cord-291946-kq0rsuxj	68	36	tailed	tailed	JJ
cord-291946-kq0rsuxj	68	37	mongoose	mongoose	NN
cord-291946-kq0rsuxj	68	38	and	and	CC
cord-291946-kq0rsuxj	68	39	the	the	DT
cord-291946-kq0rsuxj	68	40	narrow	narrow	JJ
cord-291946-kq0rsuxj	68	41	-	-	HYPH
cord-291946-kq0rsuxj	68	42	striped	striped	JJ
cord-291946-kq0rsuxj	68	43	mongoose	mongoose	NN
cord-291946-kq0rsuxj	68	44	[	[	-LRB-
cord-291946-kq0rsuxj	68	45	21	21	CD
cord-291946-kq0rsuxj	68	46	]	]	-RRB-
cord-291946-kq0rsuxj	68	47	.	.	.
cord-291946-kq0rsuxj	69	1	Additional	additional	JJ
cord-291946-kq0rsuxj	69	2	DNA	dna	NN
cord-291946-kq0rsuxj	69	3	sequencing	sequencing	NN
cord-291946-kq0rsuxj	69	4	identified	identify	VBN
cord-291946-kq0rsuxj	69	5	viral	viral	JJ
cord-291946-kq0rsuxj	69	6	sequences	sequence	NNS
cord-291946-kq0rsuxj	69	7	that	that	WDT
cord-291946-kq0rsuxj	69	8	were	be	VBD
cord-291946-kq0rsuxj	69	9	similar	similar	JJ
cord-291946-kq0rsuxj	69	10	to	to	IN
cord-291946-kq0rsuxj	69	11	REV	REV	NNP
cord-291946-kq0rsuxj	69	12	across	across	IN
cord-291946-kq0rsuxj	69	13	the	the	DT
cord-291946-kq0rsuxj	69	14	entire	entire	JJ
cord-291946-kq0rsuxj	69	15	viral	viral	JJ
cord-291946-kq0rsuxj	69	16	genome	genome	NN
cord-291946-kq0rsuxj	69	17	,	,	,
cord-291946-kq0rsuxj	69	18	including	include	VBG
cord-291946-kq0rsuxj	69	19	the	the	DT
cord-291946-kq0rsuxj	69	20	same	same	JJ
cord-291946-kq0rsuxj	69	21	recombination	recombination	NN
cord-291946-kq0rsuxj	69	22	breakpoint	breakpoint	NN
cord-291946-kq0rsuxj	69	23	found	find	VBN
cord-291946-kq0rsuxj	69	24	in	in	IN
cord-291946-kq0rsuxj	69	25	modern	modern	JJ
cord-291946-kq0rsuxj	69	26	REV	REV	NNP
cord-291946-kq0rsuxj	69	27	.	.	.
cord-291946-kq0rsuxj	70	1	This	this	DT
cord-291946-kq0rsuxj	70	2	crucial	crucial	JJ
cord-291946-kq0rsuxj	70	3	finding	finding	NN
cord-291946-kq0rsuxj	70	4	showed	show	VBD
cord-291946-kq0rsuxj	70	5	definitively	definitively	RB
cord-291946-kq0rsuxj	70	6	that	that	IN
cord-291946-kq0rsuxj	70	7	the	the	DT
cord-291946-kq0rsuxj	70	8	endogenous	endogenous	JJ
cord-291946-kq0rsuxj	70	9	retrovirus	retrovirus	NN
cord-291946-kq0rsuxj	70	10	from	from	IN
cord-291946-kq0rsuxj	70	11	mammals	mammal	NNS
cord-291946-kq0rsuxj	70	12	and	and	CC
cord-291946-kq0rsuxj	70	13	the	the	DT
cord-291946-kq0rsuxj	70	14	currently	currently	RB
cord-291946-kq0rsuxj	70	15	circulating	circulate	VBG
cord-291946-kq0rsuxj	70	16	avian	avian	JJ
cord-291946-kq0rsuxj	70	17	exogenous	exogenous	JJ
cord-291946-kq0rsuxj	70	18	REVs	rev	NNS
cord-291946-kq0rsuxj	70	19	share	share	VBP
cord-291946-kq0rsuxj	70	20	a	a	DT
cord-291946-kq0rsuxj	70	21	common	common	JJ
cord-291946-kq0rsuxj	70	22	ancestor	ancestor	NN
cord-291946-kq0rsuxj	70	23	.	.	.
cord-291946-kq0rsuxj	71	1	To	to	TO
cord-291946-kq0rsuxj	71	2	estimate	estimate	VB
cord-291946-kq0rsuxj	71	3	the	the	DT
cord-291946-kq0rsuxj	71	4	age	age	NN
cord-291946-kq0rsuxj	71	5	of	of	IN
cord-291946-kq0rsuxj	71	6	this	this	DT
cord-291946-kq0rsuxj	71	7	ancient	ancient	JJ
cord-291946-kq0rsuxj	71	8	retroviral	retroviral	NN
cord-291946-kq0rsuxj	71	9	lineage	lineage	NN
cord-291946-kq0rsuxj	71	10	,	,	,
cord-291946-kq0rsuxj	71	11	the	the	DT
cord-291946-kq0rsuxj	71	12	authors	author	NNS
cord-291946-kq0rsuxj	71	13	showed	show	VBD
cord-291946-kq0rsuxj	71	14	that	that	IN
cord-291946-kq0rsuxj	71	15	the	the	DT
cord-291946-kq0rsuxj	71	16	flanking	flank	VBG
cord-291946-kq0rsuxj	71	17	regions	region	NNS
cord-291946-kq0rsuxj	71	18	of	of	IN
cord-291946-kq0rsuxj	71	19	the	the	DT
cord-291946-kq0rsuxj	71	20	newly	newly	RB
cord-291946-kq0rsuxj	71	21	characterized	characterize	VBN
cord-291946-kq0rsuxj	71	22	EVEs	eve	NNS
cord-291946-kq0rsuxj	71	23	were	be	VBD
cord-291946-kq0rsuxj	71	24	common	common	JJ
cord-291946-kq0rsuxj	71	25	to	to	IN
cord-291946-kq0rsuxj	71	26	the	the	DT
cord-291946-kq0rsuxj	71	27	two	two	CD
cord-291946-kq0rsuxj	71	28	mongoose	mongoose	NN
cord-291946-kq0rsuxj	71	29	species	specie	NNS
cord-291946-kq0rsuxj	71	30	[	[	-LRB-
cord-291946-kq0rsuxj	71	31	21	21	CD
cord-291946-kq0rsuxj	71	32	]	]	-RRB-
cord-291946-kq0rsuxj	71	33	,	,	,
cord-291946-kq0rsuxj	71	34	thus	thus	RB
cord-291946-kq0rsuxj	71	35	showing	show	VBG
cord-291946-kq0rsuxj	71	36	the	the	DT
cord-291946-kq0rsuxj	71	37	REV	REV	NNP
cord-291946-kq0rsuxj	71	38	-	-	HYPH
cord-291946-kq0rsuxj	71	39	like	like	JJ
cord-291946-kq0rsuxj	71	40	retrovirus	retrovirus	NN
cord-291946-kq0rsuxj	71	41	entered	enter	VBD
cord-291946-kq0rsuxj	71	42	the	the	DT
cord-291946-kq0rsuxj	71	43	germline	germline	NN
cord-291946-kq0rsuxj	71	44	and	and	CC
cord-291946-kq0rsuxj	71	45	reached	reach	VBN
cord-291946-kq0rsuxj	71	46	fixation	fixation	NN
cord-291946-kq0rsuxj	71	47	before	before	IN
cord-291946-kq0rsuxj	71	48	the	the	DT
cord-291946-kq0rsuxj	71	49	split	split	NN
cord-291946-kq0rsuxj	71	50	between	between	IN
cord-291946-kq0rsuxj	71	51	these	these	DT
cord-291946-kq0rsuxj	71	52	two	two	CD
cord-291946-kq0rsuxj	71	53	species	specie	NNS
cord-291946-kq0rsuxj	71	54	during	during	IN
cord-291946-kq0rsuxj	71	55	the	the	DT
cord-291946-kq0rsuxj	71	56	Miocene	miocene	JJ
cord-291946-kq0rsuxj	71	57	period	period	NN
cord-291946-kq0rsuxj	71	58	(	(	-LRB-
cord-291946-kq0rsuxj	71	59	Figure	figure	NN
cord-291946-kq0rsuxj	71	60	1	1	CD
cord-291946-kq0rsuxj	71	61	)	)	-RRB-
cord-291946-kq0rsuxj	71	62	.	.	.
cord-291946-kq0rsuxj	72	1	Therefore	therefore	RB
cord-291946-kq0rsuxj	72	2	,	,	,
cord-291946-kq0rsuxj	72	3	an	an	DT
cord-291946-kq0rsuxj	72	4	exogenous	exogenous	JJ
cord-291946-kq0rsuxj	72	5	recombinant	recombinant	JJ
cord-291946-kq0rsuxj	72	6	REV	REV	NNP
cord-291946-kq0rsuxj	72	7	-	-	HYPH
cord-291946-kq0rsuxj	72	8	like	like	JJ
cord-291946-kq0rsuxj	72	9	virus	virus	NN
cord-291946-kq0rsuxj	72	10	was	be	VBD
cord-291946-kq0rsuxj	72	11	circulating	circulate	VBG
cord-291946-kq0rsuxj	72	12	in	in	IN
cord-291946-kq0rsuxj	72	13	mammals	mammal	NNS
cord-291946-kq0rsuxj	72	14	more	more	JJR
cord-291946-kq0rsuxj	72	15	than	than	IN
cord-291946-kq0rsuxj	72	16	8	8	CD
cord-291946-kq0rsuxj	72	17	million	million	CD
cord-291946-kq0rsuxj	72	18	years	year	NNS
cord-291946-kq0rsuxj	72	19	ago	ago	RB
cord-291946-kq0rsuxj	72	20	.	.	.
cord-291946-kq0rsuxj	73	1	How	how	WRB
cord-291946-kq0rsuxj	73	2	then	then	RB
cord-291946-kq0rsuxj	73	3	did	do	VBD
cord-291946-kq0rsuxj	73	4	this	this	DT
cord-291946-kq0rsuxj	73	5	mammalian	mammalian	JJ
cord-291946-kq0rsuxj	73	6	retrovirus	retrovirus	NN
cord-291946-kq0rsuxj	73	7	get	get	VBP
cord-291946-kq0rsuxj	73	8	into	into	IN
cord-291946-kq0rsuxj	73	9	birds	bird	NNS
cord-291946-kq0rsuxj	73	10	?	?	.
cord-291946-kq0rsuxj	74	1	From	from	IN
cord-291946-kq0rsuxj	74	2	here	here	RB
cord-291946-kq0rsuxj	74	3	the	the	DT
cord-291946-kq0rsuxj	74	4	story	story	NN
cord-291946-kq0rsuxj	74	5	gets	get	VBZ
cord-291946-kq0rsuxj	74	6	spectacular	spectacular	JJ
cord-291946-kq0rsuxj	74	7	and	and	CC
cord-291946-kq0rsuxj	74	8	strange	strange	JJ
cord-291946-kq0rsuxj	74	9	(	(	-LRB-
cord-291946-kq0rsuxj	74	10	yet	yet	CC
cord-291946-kq0rsuxj	74	11	still	still	RB
cord-291946-kq0rsuxj	74	12	very	very	RB
cord-291946-kq0rsuxj	74	13	plausible	plausible	JJ
cord-291946-kq0rsuxj	74	14	)	)	-RRB-
cord-291946-kq0rsuxj	74	15	.	.	.
cord-291946-kq0rsuxj	75	1	In	in	IN
cord-291946-kq0rsuxj	75	2	the	the	DT
cord-291946-kq0rsuxj	75	3	1930s	1930	NNS
cord-291946-kq0rsuxj	75	4	,	,	,
cord-291946-kq0rsuxj	75	5	the	the	DT
cord-291946-kq0rsuxj	75	6	need	need	NN
cord-291946-kq0rsuxj	75	7	for	for	IN
cord-291946-kq0rsuxj	75	8	an	an	DT
cord-291946-kq0rsuxj	75	9	experimental	experimental	JJ
cord-291946-kq0rsuxj	75	10	model	model	NN
cord-291946-kq0rsuxj	75	11	system	system	NN
cord-291946-kq0rsuxj	75	12	for	for	IN
cord-291946-kq0rsuxj	75	13	malaria	malaria	NN
cord-291946-kq0rsuxj	75	14	research	research	NN
cord-291946-kq0rsuxj	75	15	led	lead	VBD
cord-291946-kq0rsuxj	75	16	Lowell	Lowell	NNP
cord-291946-kq0rsuxj	75	17	Coggeshall	Coggeshall	NNP
cord-291946-kq0rsuxj	75	18	to	to	TO
cord-291946-kq0rsuxj	75	19	isolate	isolate	VB
cord-291946-kq0rsuxj	75	20	Plasmodium	plasmodium	NN
cord-291946-kq0rsuxj	75	21	parasites	parasite	NNS
cord-291946-kq0rsuxj	75	22	from	from	IN
cord-291946-kq0rsuxj	75	23	a	a	DT
cord-291946-kq0rsuxj	75	24	pheasant	pheasant	NN
cord-291946-kq0rsuxj	75	25	,	,	,
cord-291946-kq0rsuxj	75	26	originally	originally	RB
cord-291946-kq0rsuxj	75	27	from	from	IN
cord-291946-kq0rsuxj	75	28	Borneo	Borneo	NNP
cord-291946-kq0rsuxj	75	29	,	,	,
cord-291946-kq0rsuxj	75	30	that	that	WDT
cord-291946-kq0rsuxj	75	31	was	be	VBD
cord-291946-kq0rsuxj	75	32	housed	house	VBN
cord-291946-kq0rsuxj	75	33	at	at	IN
cord-291946-kq0rsuxj	75	34	the	the	DT
cord-291946-kq0rsuxj	75	35	Bronx	Bronx	NNP
cord-291946-kq0rsuxj	75	36	Zoo	Zoo	NNP
cord-291946-kq0rsuxj	75	37	.	.	.
cord-291946-kq0rsuxj	76	1	For	for	IN
cord-291946-kq0rsuxj	76	2	experimental	experimental	JJ
cord-291946-kq0rsuxj	76	3	vaccine	vaccine	NN
cord-291946-kq0rsuxj	76	4	and	and	CC
cord-291946-kq0rsuxj	76	5	drug	drug	NN
cord-291946-kq0rsuxj	76	6	research	research	NN
cord-291946-kq0rsuxj	76	7	purposes	purpose	NNS
cord-291946-kq0rsuxj	76	8	,	,	,
cord-291946-kq0rsuxj	76	9	the	the	DT
cord-291946-kq0rsuxj	76	10	Plasmodium	Plasmodium	NNP
cord-291946-kq0rsuxj	76	11	stock	stock	NN
cord-291946-kq0rsuxj	76	12	was	be	VBD
cord-291946-kq0rsuxj	76	13	passaged	passage	VBN
cord-291946-kq0rsuxj	76	14	over	over	IN
cord-291946-kq0rsuxj	76	15	time	time	NN
cord-291946-kq0rsuxj	76	16	in	in	IN
cord-291946-kq0rsuxj	76	17	poultry	poultry	NN
cord-291946-kq0rsuxj	76	18	until	until	IN
cord-291946-kq0rsuxj	76	19	the	the	DT
cord-291946-kq0rsuxj	76	20	1980s	1980s	CD
cord-291946-kq0rsuxj	76	21	and	and	CC
cord-291946-kq0rsuxj	76	22	was	be	VBD
cord-291946-kq0rsuxj	76	23	distributed	distribute	VBN
cord-291946-kq0rsuxj	76	24	to	to	IN
cord-291946-kq0rsuxj	76	25	many	many	JJ
cord-291946-kq0rsuxj	76	26	US	US	NNP
cord-291946-kq0rsuxj	76	27	laboratories	laboratory	NNS
cord-291946-kq0rsuxj	76	28	.	.	.
cord-291946-kq0rsuxj	77	1	However	however	RB
cord-291946-kq0rsuxj	77	2	,	,	,
cord-291946-kq0rsuxj	77	3	the	the	DT
cord-291946-kq0rsuxj	77	4	culture	culture	NN
cord-291946-kq0rsuxj	77	5	of	of	IN
cord-291946-kq0rsuxj	77	6	Plasmodium	Plasmodium	NNP
cord-291946-kq0rsuxj	77	7	lophurae	lophurae	NNP
cord-291946-kq0rsuxj	77	8	was	be	VBD
cord-291946-kq0rsuxj	77	9	contaminated	contaminate	VBN
cord-291946-kq0rsuxj	77	10	with	with	IN
cord-291946-kq0rsuxj	77	11	retroviruses	retrovirus	NNS
cord-291946-kq0rsuxj	77	12	from	from	IN
cord-291946-kq0rsuxj	77	13	the	the	DT
cord-291946-kq0rsuxj	77	14	REV	REV	NNP
cord-291946-kq0rsuxj	77	15	lineages	lineage	NNS
cord-291946-kq0rsuxj	77	16	(	(	-LRB-
cord-291946-kq0rsuxj	77	17	contamination	contamination	NN
cord-291946-kq0rsuxj	77	18	may	may	MD
cord-291946-kq0rsuxj	77	19	have	have	VB
cord-291946-kq0rsuxj	77	20	existed	exist	VBN
cord-291946-kq0rsuxj	77	21	in	in	IN
cord-291946-kq0rsuxj	77	22	the	the	DT
cord-291946-kq0rsuxj	77	23	pheasant	pheasant	NN
cord-291946-kq0rsuxj	77	24	,	,	,
cord-291946-kq0rsuxj	77	25	or	or	CC
cord-291946-kq0rsuxj	77	26	might	may	MD
cord-291946-kq0rsuxj	77	27	have	have	VB
cord-291946-kq0rsuxj	77	28	been	be	VBN
cord-291946-kq0rsuxj	77	29	acquired	acquire	VBN
cord-291946-kq0rsuxj	77	30	during	during	IN
cord-291946-kq0rsuxj	77	31	passage	passage	NN
cord-291946-kq0rsuxj	77	32	)	)	-RRB-
cord-291946-kq0rsuxj	77	33	.	.	.
cord-291946-kq0rsuxj	78	1	The	the	DT
cord-291946-kq0rsuxj	78	2	authors	author	NNS
cord-291946-kq0rsuxj	78	3	depict	depict	VBP
cord-291946-kq0rsuxj	78	4	a	a	DT
cord-291946-kq0rsuxj	78	5	compelling	compelling	JJ
cord-291946-kq0rsuxj	78	6	scenario	scenario	NN
cord-291946-kq0rsuxj	78	7	in	in	IN
cord-291946-kq0rsuxj	78	8	which	which	WDT
cord-291946-kq0rsuxj	78	9	the	the	DT
cord-291946-kq0rsuxj	78	10	zoological	zoological	JJ
cord-291946-kq0rsuxj	78	11	park	park	NN
cord-291946-kq0rsuxj	78	12	,	,	,
cord-291946-kq0rsuxj	78	13	an	an	DT
cord-291946-kq0rsuxj	78	14	environment	environment	NN
cord-291946-kq0rsuxj	78	15	in	in	IN
cord-291946-kq0rsuxj	78	16	which	which	WDT
cord-291946-kq0rsuxj	78	17	exotic	exotic	JJ
cord-291946-kq0rsuxj	78	18	animal	animal	NN
cord-291946-kq0rsuxj	78	19	species	specie	NNS
cord-291946-kq0rsuxj	78	20	from	from	IN
cord-291946-kq0rsuxj	78	21	diverse	diverse	JJ
cord-291946-kq0rsuxj	78	22	lineages	lineage	NNS
cord-291946-kq0rsuxj	78	23	are	be	VBP
cord-291946-kq0rsuxj	78	24	brought	bring	VBN
cord-291946-kq0rsuxj	78	25	together	together	RB
cord-291946-kq0rsuxj	78	26	in	in	IN
cord-291946-kq0rsuxj	78	27	unusually	unusually	RB
cord-291946-kq0rsuxj	78	28	close	close	JJ
cord-291946-kq0rsuxj	78	29	proximity	proximity	NN
cord-291946-kq0rsuxj	78	30	,	,	,
cord-291946-kq0rsuxj	78	31	could	could	MD
cord-291946-kq0rsuxj	78	32	have	have	VB
cord-291946-kq0rsuxj	78	33	favored	favor	VBN
cord-291946-kq0rsuxj	78	34	the	the	DT
cord-291946-kq0rsuxj	78	35	inter	inter	JJ
cord-291946-kq0rsuxj	78	36	-	-	JJ
cord-291946-kq0rsuxj	78	37	class	class	JJ
cord-291946-kq0rsuxj	78	38	transmission	transmission	NN
cord-291946-kq0rsuxj	78	39	of	of	IN
cord-291946-kq0rsuxj	78	40	REVs	rev	NNS
cord-291946-kq0rsuxj	78	41	from	from	IN
cord-291946-kq0rsuxj	78	42	mammals	mammal	NNS
cord-291946-kq0rsuxj	78	43	to	to	IN
cord-291946-kq0rsuxj	78	44	the	the	DT
cord-291946-kq0rsuxj	78	45	pheasant	pheasant	NN
cord-291946-kq0rsuxj	78	46	from	from	IN
cord-291946-kq0rsuxj	78	47	which	which	WDT
cord-291946-kq0rsuxj	78	48	Plasmodium	plasmodium	NN
cord-291946-kq0rsuxj	78	49	was	be	VBD
cord-291946-kq0rsuxj	78	50	isolated	isolate	VBN
cord-291946-kq0rsuxj	78	51	.	.	.
cord-291946-kq0rsuxj	79	1	However	however	RB
cord-291946-kq0rsuxj	79	2	,	,	,
cord-291946-kq0rsuxj	79	3	as	as	IN
cord-291946-kq0rsuxj	79	4	inter	inter	JJ
cord-291946-kq0rsuxj	79	5	-	-	JJ
cord-291946-kq0rsuxj	79	6	class	class	JJ
cord-291946-kq0rsuxj	79	7	transmissions	transmission	NNS
cord-291946-kq0rsuxj	79	8	often	often	RB
cord-291946-kq0rsuxj	79	9	result	result	VBP
cord-291946-kq0rsuxj	79	10	in	in	IN
cord-291946-kq0rsuxj	79	11	deadend	deadend	JJ
cord-291946-kq0rsuxj	79	12	infections	infection	NNS
cord-291946-kq0rsuxj	79	13	,	,	,
cord-291946-kq0rsuxj	79	14	the	the	DT
cord-291946-kq0rsuxj	79	15	authors	author	NNS
cord-291946-kq0rsuxj	79	16	surmise	surmise	VBP
cord-291946-kq0rsuxj	79	17	that	that	IN
cord-291946-kq0rsuxj	79	18	serial	serial	JJ
cord-291946-kq0rsuxj	79	19	passages	passage	NNS
cord-291946-kq0rsuxj	79	20	of	of	IN
cord-291946-kq0rsuxj	79	21	the	the	DT
cord-291946-kq0rsuxj	79	22	retrovirus	retrovirus	NN
cord-291946-kq0rsuxj	79	23	-	-	HYPH
cord-291946-kq0rsuxj	79	24	containing	contain	VBG
cord-291946-kq0rsuxj	79	25	Plasmodium	Plasmodium	NNP
cord-291946-kq0rsuxj	79	26	stock	stock	NN
cord-291946-kq0rsuxj	79	27	in	in	IN
cord-291946-kq0rsuxj	79	28	poultry	poultry	NN
cord-291946-kq0rsuxj	79	29	favored	favor	VBD
cord-291946-kq0rsuxj	79	30	the	the	DT
cord-291946-kq0rsuxj	79	31	adaptation	adaptation	NN
cord-291946-kq0rsuxj	79	32	of	of	IN
cord-291946-kq0rsuxj	79	33	the	the	DT
cord-291946-kq0rsuxj	79	34	mammalian	mammalian	JJ
cord-291946-kq0rsuxj	79	35	virus	virus	NN
cord-291946-kq0rsuxj	79	36	to	to	TO
cord-291946-kq0rsuxj	79	37	bird	bird	NN
cord-291946-kq0rsuxj	79	38	hosts	host	NNS
cord-291946-kq0rsuxj	79	39	.	.	.
cord-291946-kq0rsuxj	80	1	Sometime	sometime	RB
cord-291946-kq0rsuxj	80	2	along	along	IN
cord-291946-kq0rsuxj	80	3	the	the	DT
cord-291946-kq0rsuxj	80	4	way	way	NN
cord-291946-kq0rsuxj	80	5	,	,	,
cord-291946-kq0rsuxj	80	6	the	the	DT
cord-291946-kq0rsuxj	80	7	REV	REV	NNP
cord-291946-kq0rsuxj	80	8	virus	virus	NN
cord-291946-kq0rsuxj	80	9	integrated	integrate	VBN
cord-291946-kq0rsuxj	80	10	into	into	IN
cord-291946-kq0rsuxj	80	11	two	two	CD
cord-291946-kq0rsuxj	80	12	large	large	JJ
cord-291946-kq0rsuxj	80	13	DNA	dna	NN
cord-291946-kq0rsuxj	80	14	viruses	virus	NNS
cord-291946-kq0rsuxj	80	15	:	:	:
cord-291946-kq0rsuxj	80	16	a	a	DT
cord-291946-kq0rsuxj	80	17	poxvirus	poxvirus	NNP
cord-291946-kq0rsuxj	80	18	(	(	-LRB-
cord-291946-kq0rsuxj	80	19	FWPV	FWPV	NNP
cord-291946-kq0rsuxj	80	20	)	)	-RRB-
cord-291946-kq0rsuxj	80	21	that	that	WDT
cord-291946-kq0rsuxj	80	22	contained	contain	VBD
cord-291946-kq0rsuxj	80	23	a	a	DT
cord-291946-kq0rsuxj	80	24	full	full	JJ
cord-291946-kq0rsuxj	80	25	-	-	HYPH
cord-291946-kq0rsuxj	80	26	length	length	NN
cord-291946-kq0rsuxj	80	27	insertion	insertion	NN
cord-291946-kq0rsuxj	80	28	of	of	IN
cord-291946-kq0rsuxj	80	29	REV	REV	NNP
cord-291946-kq0rsuxj	80	30	and	and	CC
cord-291946-kq0rsuxj	80	31	a	a	DT
cord-291946-kq0rsuxj	80	32	herpesvirus	herpesvirus	NN
cord-291946-kq0rsuxj	80	33	(	(	-LRB-
cord-291946-kq0rsuxj	80	34	GHV-2	GHV-2	NNP
cord-291946-kq0rsuxj	80	35	)	)	-RRB-
cord-291946-kq0rsuxj	80	36	containing	contain	VBG
cord-291946-kq0rsuxj	80	37	only	only	RB
cord-291946-kq0rsuxj	80	38	a	a	DT
cord-291946-kq0rsuxj	80	39	fragment	fragment	NN
cord-291946-kq0rsuxj	80	40	of	of	IN
cord-291946-kq0rsuxj	80	41	REV	REV	NNP
cord-291946-kq0rsuxj	80	42	[	[	-LRB-
cord-291946-kq0rsuxj	80	43	19	19	CD
cord-291946-kq0rsuxj	80	44	,	,	,
cord-291946-kq0rsuxj	80	45	20	20	CD
cord-291946-kq0rsuxj	80	46	]	]	-RRB-
cord-291946-kq0rsuxj	80	47	.	.	.
cord-291946-kq0rsuxj	81	1	Because	because	IN
cord-291946-kq0rsuxj	81	2	live	live	JJ
cord-291946-kq0rsuxj	81	3	attenuated	attenuated	JJ
cord-291946-kq0rsuxj	81	4	FWPV	FWPV	NNP
cord-291946-kq0rsuxj	81	5	vaccines	vaccine	NNS
cord-291946-kq0rsuxj	81	6	harboring	harbor	VBG
cord-291946-kq0rsuxj	81	7	replicative	replicative	JJ
cord-291946-kq0rsuxj	81	8	competent	competent	JJ
cord-291946-kq0rsuxj	81	9	REVs	rev	NNS
cord-291946-kq0rsuxj	81	10	were	be	VBD
cord-291946-kq0rsuxj	81	11	used	use	VBN
cord-291946-kq0rsuxj	81	12	in	in	IN
cord-291946-kq0rsuxj	81	13	vaccination	vaccination	NN
cord-291946-kq0rsuxj	81	14	campaigns	campaign	NNS
cord-291946-kq0rsuxj	81	15	of	of	IN
cord-291946-kq0rsuxj	81	16	poultry	poultry	NN
cord-291946-kq0rsuxj	81	17	,	,	,
cord-291946-kq0rsuxj	81	18	it	-PRON-	PRP
cord-291946-kq0rsuxj	81	19	may	may	MD
cord-291946-kq0rsuxj	81	20	have	have	VB
cord-291946-kq0rsuxj	81	21	further	further	RB
cord-291946-kq0rsuxj	81	22	played	play	VBN
cord-291946-kq0rsuxj	81	23	a	a	DT
cord-291946-kq0rsuxj	81	24	role	role	NN
cord-291946-kq0rsuxj	81	25	in	in	IN
cord-291946-kq0rsuxj	81	26	the	the	DT
cord-291946-kq0rsuxj	81	27	spread	spread	NN
cord-291946-kq0rsuxj	81	28	of	of	IN
cord-291946-kq0rsuxj	81	29	REVs	rev	NNS
cord-291946-kq0rsuxj	81	30	into	into	IN
cord-291946-kq0rsuxj	81	31	wild	wild	JJ
cord-291946-kq0rsuxj	81	32	birds	bird	NNS
cord-291946-kq0rsuxj	81	33	around	around	IN
cord-291946-kq0rsuxj	81	34	the	the	DT
cord-291946-kq0rsuxj	81	35	world	world	NN
cord-291946-kq0rsuxj	81	36	[	[	-LRB-
cord-291946-kq0rsuxj	81	37	21	21	CD
cord-291946-kq0rsuxj	81	38	]	]	-RRB-
cord-291946-kq0rsuxj	81	39	.	.	.
cord-291946-kq0rsuxj	82	1	Thus	thus	RB
cord-291946-kq0rsuxj	82	2	,	,	,
cord-291946-kq0rsuxj	82	3	REV	REV	NNP
cord-291946-kq0rsuxj	82	4	is	be	VBZ
cord-291946-kq0rsuxj	82	5	now	now	RB
cord-291946-kq0rsuxj	82	6	a	a	DT
cord-291946-kq0rsuxj	82	7	bird	bird	NN
cord-291946-kq0rsuxj	82	8	virus	virus	NN
cord-291946-kq0rsuxj	82	9	that	that	WDT
cord-291946-kq0rsuxj	82	10	was	be	VBD
cord-291946-kq0rsuxj	82	11	once	once	RB
cord-291946-kq0rsuxj	82	12	an	an	DT
cord-291946-kq0rsuxj	82	13	ancient	ancient	JJ
cord-291946-kq0rsuxj	82	14	mammalian	mammalian	JJ
cord-291946-kq0rsuxj	82	15	virus	virus	NN
cord-291946-kq0rsuxj	82	16	(	(	-LRB-
cord-291946-kq0rsuxj	82	17	Box	Box	NNP
cord-291946-kq0rsuxj	82	18	1	1	CD
cord-291946-kq0rsuxj	82	19	)	)	-RRB-
cord-291946-kq0rsuxj	82	20	.	.	.
cord-291946-kq0rsuxj	83	1	Further	further	JJ
cord-291946-kq0rsuxj	83	2	efforts	effort	NNS
cord-291946-kq0rsuxj	83	3	are	be	VBP
cord-291946-kq0rsuxj	83	4	needed	need	VBN
cord-291946-kq0rsuxj	83	5	to	to	TO
cord-291946-kq0rsuxj	83	6	determine	determine	VB
cord-291946-kq0rsuxj	83	7	if	if	IN
cord-291946-kq0rsuxj	83	8	REV	REV	NNP
cord-291946-kq0rsuxj	83	9	still	still	RB
cord-291946-kq0rsuxj	83	10	has	have	VBZ
cord-291946-kq0rsuxj	83	11	a	a	DT
cord-291946-kq0rsuxj	83	12	modern	modern	JJ
cord-291946-kq0rsuxj	83	13	mammalian	mammalian	JJ
cord-291946-kq0rsuxj	83	14	host	host	NN
cord-291946-kq0rsuxj	83	15	;	;	:
cord-291946-kq0rsuxj	83	16	the	the	DT
cord-291946-kq0rsuxj	83	17	authors	author	NNS
cord-291946-kq0rsuxj	83	18	of	of	IN
cord-291946-kq0rsuxj	83	19	this	this	DT
cord-291946-kq0rsuxj	83	20	study	study	NN
cord-291946-kq0rsuxj	83	21	speculate	speculate	VBP
cord-291946-kq0rsuxj	83	22	it	-PRON-	PRP
cord-291946-kq0rsuxj	83	23	could	could	MD
cord-291946-kq0rsuxj	83	24	be	be	VB
cord-291946-kq0rsuxj	83	25	a	a	DT
cord-291946-kq0rsuxj	83	26	bat	bat	NN
cord-291946-kq0rsuxj	83	27	species	specie	NNS
cord-291946-kq0rsuxj	83	28	[	[	-LRB-
cord-291946-kq0rsuxj	83	29	21	21	CD
cord-291946-kq0rsuxj	83	30	]	]	-RRB-
cord-291946-kq0rsuxj	83	31	.	.	.
cord-291946-kq0rsuxj	84	1	Indeed	indeed	RB
cord-291946-kq0rsuxj	84	2	,	,	,
cord-291946-kq0rsuxj	84	3	the	the	DT
cord-291946-kq0rsuxj	84	4	reservoir	reservoir	NN
cord-291946-kq0rsuxj	84	5	of	of	IN
cord-291946-kq0rsuxj	84	6	viruses	virus	NNS
cord-291946-kq0rsuxj	84	7	is	be	VBZ
cord-291946-kq0rsuxj	84	8	vast	vast	JJ
cord-291946-kq0rsuxj	84	9	,	,	,
cord-291946-kq0rsuxj	84	10	and	and	CC
cord-291946-kq0rsuxj	84	11	recent	recent	JJ
cord-291946-kq0rsuxj	84	12	field	field	NN
cord-291946-kq0rsuxj	84	13	studies	study	NNS
cord-291946-kq0rsuxj	84	14	and	and	CC
cord-291946-kq0rsuxj	84	15	metagenomic	metagenomic	NNP
cord-291946-kq0rsuxj	84	16	screens	screen	NNS
cord-291946-kq0rsuxj	84	17	are	be	VBP
cord-291946-kq0rsuxj	84	18	finding	find	VBG
cord-291946-kq0rsuxj	84	19	relatives	relative	NNS
cord-291946-kq0rsuxj	84	20	of	of	IN
cord-291946-kq0rsuxj	84	21	human	human	JJ
cord-291946-kq0rsuxj	84	22	and	and	CC
cord-291946-kq0rsuxj	84	23	domestic	domestic	JJ
cord-291946-kq0rsuxj	84	24	animal	animal	NN
cord-291946-kq0rsuxj	84	25	viral	viral	JJ
cord-291946-kq0rsuxj	84	26	pathogens	pathogen	NNS
cord-291946-kq0rsuxj	84	27	in	in	IN
cord-291946-kq0rsuxj	84	28	unexpected	unexpected	JJ
cord-291946-kq0rsuxj	84	29	places	place	NNS
cord-291946-kq0rsuxj	84	30	(	(	-LRB-
cord-291946-kq0rsuxj	84	31	for	for	IN
cord-291946-kq0rsuxj	84	32	example	example	NN
cord-291946-kq0rsuxj	84	33	,	,	,
cord-291946-kq0rsuxj	84	34	[	[	-LRB-
cord-291946-kq0rsuxj	84	35	22	22	CD
cord-291946-kq0rsuxj	84	36	]	]	-RRB-
cord-291946-kq0rsuxj	84	37	)	)	-RRB-
cord-291946-kq0rsuxj	84	38	.	.	.
cord-291946-kq0rsuxj	85	1	Moreover	moreover	RB
cord-291946-kq0rsuxj	85	2	,	,	,
cord-291946-kq0rsuxj	85	3	it	-PRON-	PRP
cord-291946-kq0rsuxj	85	4	will	will	MD
cord-291946-kq0rsuxj	85	5	be	be	VB
cord-291946-kq0rsuxj	85	6	important	important	JJ
cord-291946-kq0rsuxj	85	7	to	to	TO
cord-291946-kq0rsuxj	85	8	determine	determine	VB
cord-291946-kq0rsuxj	85	9	if	if	IN
cord-291946-kq0rsuxj	85	10	the	the	DT
cord-291946-kq0rsuxj	85	11	ancient	ancient	JJ
cord-291946-kq0rsuxj	85	12	exogenous	exogenous	JJ
cord-291946-kq0rsuxj	85	13	REV	REV	NNP
cord-291946-kq0rsuxj	85	14	had	have	VBD
cord-291946-kq0rsuxj	85	15	a	a	DT
cord-291946-kq0rsuxj	85	16	wider	wide	JJR
cord-291946-kq0rsuxj	85	17	reservoir	reservoir	NN
cord-291946-kq0rsuxj	85	18	by	by	IN
cord-291946-kq0rsuxj	85	19	investigating	investigate	VBG
cord-291946-kq0rsuxj	85	20	more	more	JJR
cord-291946-kq0rsuxj	85	21	animal	animal	NN
cord-291946-kq0rsuxj	85	22	genomes	genome	NNS
cord-291946-kq0rsuxj	85	23	(	(	-LRB-
cord-291946-kq0rsuxj	85	24	Figure	figure	NN
cord-291946-kq0rsuxj	85	25	1	1	CD
cord-291946-kq0rsuxj	85	26	)	)	-RRB-
cord-291946-kq0rsuxj	85	27	.	.	.
cord-291946-kq0rsuxj	86	1	Importantly	importantly	RB
cord-291946-kq0rsuxj	86	2	,	,	,
cord-291946-kq0rsuxj	86	3	the	the	DT
cord-291946-kq0rsuxj	86	4	increasing	increase	VBG
cord-291946-kq0rsuxj	86	5	number	number	NN
cord-291946-kq0rsuxj	86	6	of	of	IN
cord-291946-kq0rsuxj	86	7	full	full	JJ
cord-291946-kq0rsuxj	86	8	-	-	HYPH
cord-291946-kq0rsuxj	86	9	length	length	NN
cord-291946-kq0rsuxj	86	10	genome	genome	NN
cord-291946-kq0rsuxj	86	11	data	datum	NNS
cord-291946-kq0rsuxj	86	12	obtained	obtain	VBN
cord-291946-kq0rsuxj	86	13	by	by	IN
cord-291946-kq0rsuxj	86	14	next	next	JJ
cord-291946-kq0rsuxj	86	15	-	-	HYPH
cord-291946-kq0rsuxj	86	16	generation	generation	NN
cord-291946-kq0rsuxj	86	17	sequencing	sequencing	NN
cord-291946-kq0rsuxj	86	18	from	from	IN
cord-291946-kq0rsuxj	86	19	various	various	JJ
cord-291946-kq0rsuxj	86	20	animal	animal	NN
cord-291946-kq0rsuxj	86	21	species	specie	NNS
cord-291946-kq0rsuxj	86	22	will	will	MD
cord-291946-kq0rsuxj	86	23	reveal	reveal	VB
cord-291946-kq0rsuxj	86	24	an	an	DT
cord-291946-kq0rsuxj	86	25	even	even	RB
cord-291946-kq0rsuxj	86	26	greater	great	JJR
cord-291946-kq0rsuxj	86	27	number	number	NN
cord-291946-kq0rsuxj	86	28	and	and	CC
cord-291946-kq0rsuxj	86	29	genetic	genetic	JJ
cord-291946-kq0rsuxj	86	30	diversity	diversity	NN
cord-291946-kq0rsuxj	86	31	of	of	IN
cord-291946-kq0rsuxj	86	32	EVEs	eve	NNS
cord-291946-kq0rsuxj	86	33	,	,	,
cord-291946-kq0rsuxj	86	34	which	which	WDT
cord-291946-kq0rsuxj	86	35	will	will	MD
cord-291946-kq0rsuxj	86	36	allow	allow	VB
cord-291946-kq0rsuxj	86	37	us	-PRON-	PRP
cord-291946-kq0rsuxj	86	38	to	to	TO
cord-291946-kq0rsuxj	86	39	understand	understand	VB
cord-291946-kq0rsuxj	86	40	better	well	JJR
cord-291946-kq0rsuxj	86	41	the	the	DT
cord-291946-kq0rsuxj	86	42	ancestors	ancestor	NNS
cord-291946-kq0rsuxj	86	43	of	of	IN
cord-291946-kq0rsuxj	86	44	the	the	DT
cord-291946-kq0rsuxj	86	45	modern	modern	JJ
cord-291946-kq0rsuxj	86	46	viruses	virus	NNS
cord-291946-kq0rsuxj	86	47	and	and	CC
cord-291946-kq0rsuxj	86	48	estimate	estimate	VB
cord-291946-kq0rsuxj	86	49	with	with	IN
cord-291946-kq0rsuxj	86	50	greater	great	JJR
cord-291946-kq0rsuxj	86	51	precision	precision	NN
cord-291946-kq0rsuxj	86	52	the	the	DT
cord-291946-kq0rsuxj	86	53	date	date	NN
cord-291946-kq0rsuxj	86	54	of	of	IN
cord-291946-kq0rsuxj	86	55	their	-PRON-	PRP$
cord-291946-kq0rsuxj	86	56	viral	viral	JJ
cord-291946-kq0rsuxj	86	57	insertion	insertion	NN
cord-291946-kq0rsuxj	86	58	into	into	IN
cord-291946-kq0rsuxj	86	59	the	the	DT
cord-291946-kq0rsuxj	86	60	host	host	NN
cord-291946-kq0rsuxj	86	61	germline	germline	NN
cord-291946-kq0rsuxj	86	62	(	(	-LRB-
cord-291946-kq0rsuxj	86	63	Figure	figure	NN
cord-291946-kq0rsuxj	86	64	1	1	CD
cord-291946-kq0rsuxj	86	65	)	)	-RRB-
cord-291946-kq0rsuxj	86	66	.	.	.
cord-291946-kq0rsuxj	87	1	Thus	thus	RB
cord-291946-kq0rsuxj	87	2	,	,	,
cord-291946-kq0rsuxj	87	3	the	the	DT
cord-291946-kq0rsuxj	87	4	answer	answer	NN
cord-291946-kq0rsuxj	87	5	to	to	IN
cord-291946-kq0rsuxj	87	6	the	the	DT
cord-291946-kq0rsuxj	87	7	question	question	NN
cord-291946-kq0rsuxj	87	8	'	'	''
cord-291946-kq0rsuxj	87	9	'	'	''
cord-291946-kq0rsuxj	87	10	where	where	WRB
cord-291946-kq0rsuxj	87	11	did	do	VBD
cord-291946-kq0rsuxj	87	12	these	these	DT
cord-291946-kq0rsuxj	87	13	viruses	virus	NNS
cord-291946-kq0rsuxj	87	14	come	come	VB
cord-291946-kq0rsuxj	87	15	from	from	IN
cord-291946-kq0rsuxj	87	16	?	?	.
cord-291946-kq0rsuxj	87	17	'	'	''
cord-291946-kq0rsuxj	87	18	'	'	''
cord-291946-kq0rsuxj	87	19	will	will	MD
cord-291946-kq0rsuxj	87	20	increasingly	increasingly	RB
cord-291946-kq0rsuxj	87	21	become	become	VB
cord-291946-kq0rsuxj	87	22	'	'	''
cord-291946-kq0rsuxj	87	23	'	'	''
cord-291946-kq0rsuxj	87	24	they	-PRON-	PRP
cord-291946-kq0rsuxj	87	25	came	come	VBD
cord-291946-kq0rsuxj	87	26	from	from	IN
cord-291946-kq0rsuxj	87	27	ancient	ancient	JJ
cord-291946-kq0rsuxj	87	28	forms	form	NNS
cord-291946-kq0rsuxj	87	29	of	of	IN
cord-291946-kq0rsuxj	87	30	other	other	JJ
cord-291946-kq0rsuxj	87	31	viruses	virus	NNS
cord-291946-kq0rsuxj	87	32	,	,	,
cord-291946-kq0rsuxj	87	33	'	'	''
cord-291946-kq0rsuxj	87	34	'	'	''
cord-291946-kq0rsuxj	87	35	although	although	IN
cord-291946-kq0rsuxj	87	36	in	in	IN
cord-291946-kq0rsuxj	87	37	some	some	DT
cord-291946-kq0rsuxj	87	38	cases	case	NNS
cord-291946-kq0rsuxj	87	39	,	,	,
cord-291946-kq0rsuxj	87	40	such	such	JJ
cord-291946-kq0rsuxj	87	41	as	as	IN
cord-291946-kq0rsuxj	87	42	those	those	DT
cord-291946-kq0rsuxj	87	43	described	describe	VBN
cord-291946-kq0rsuxj	87	44	for	for	IN
cord-291946-kq0rsuxj	87	45	REV	REV	NNP
cord-291946-kq0rsuxj	87	46	[	[	-LRB-
cord-291946-kq0rsuxj	87	47	21	21	CD
cord-291946-kq0rsuxj	87	48	]	]	-RRB-
cord-291946-kq0rsuxj	87	49	,	,	,
cord-291946-kq0rsuxj	87	50	they	-PRON-	PRP
cord-291946-kq0rsuxj	87	51	come	come	VBP
cord-291946-kq0rsuxj	87	52	through	through	IN
cord-291946-kq0rsuxj	87	53	a	a	DT
cord-291946-kq0rsuxj	87	54	thoroughly	thoroughly	RB
cord-291946-kq0rsuxj	87	55	circuitous	circuitous	JJ
cord-291946-kq0rsuxj	87	56	route	route	NN
cord-291946-kq0rsuxj	87	57	.	.	.
cord-291946-kq0rsuxj	88	1	While	while	IN
cord-291946-kq0rsuxj	88	2	the	the	DT
cord-291946-kq0rsuxj	88	3	main	main	JJ
cord-291946-kq0rsuxj	88	4	text	text	NN
cord-291946-kq0rsuxj	88	5	describes	describe	VBZ
cord-291946-kq0rsuxj	88	6	the	the	DT
cord-291946-kq0rsuxj	88	7	origins	origin	NNS
cord-291946-kq0rsuxj	88	8	of	of	IN
cord-291946-kq0rsuxj	88	9	the	the	DT
cord-291946-kq0rsuxj	88	10	reticuloendotheliosis	reticuloendotheliosis	NNP
cord-291946-kq0rsuxj	88	11	virus	virus	NN
cord-291946-kq0rsuxj	88	12	(	(	-LRB-
cord-291946-kq0rsuxj	88	13	REV	REV	NNP
cord-291946-kq0rsuxj	88	14	)	)	-RRB-
cord-291946-kq0rsuxj	88	15	and	and	CC
cord-291946-kq0rsuxj	88	16	its	-PRON-	PRP$
cord-291946-kq0rsuxj	88	17	close	close	JJ
cord-291946-kq0rsuxj	88	18	relatives	relative	NNS
cord-291946-kq0rsuxj	88	19	as	as	IN
cord-291946-kq0rsuxj	88	20	pathogens	pathogen	NNS
cord-291946-kq0rsuxj	88	21	,	,	,
cord-291946-kq0rsuxj	88	22	the	the	DT
cord-291946-kq0rsuxj	88	23	study	study	NN
cord-291946-kq0rsuxj	88	24	of	of	IN
cord-291946-kq0rsuxj	88	25	these	these	DT
cord-291946-kq0rsuxj	88	26	retroviruses	retrovirus	NNS
cord-291946-kq0rsuxj	88	27	has	have	VBZ
cord-291946-kq0rsuxj	88	28	also	also	RB
cord-291946-kq0rsuxj	88	29	contributed	contribute	VBN
cord-291946-kq0rsuxj	88	30	to	to	IN
cord-291946-kq0rsuxj	88	31	several	several	JJ
cord-291946-kq0rsuxj	88	32	areas	area	NNS
cord-291946-kq0rsuxj	88	33	of	of	IN
cord-291946-kq0rsuxj	88	34	basic	basic	JJ
cord-291946-kq0rsuxj	88	35	science	science	NN
cord-291946-kq0rsuxj	88	36	and	and	CC
cord-291946-kq0rsuxj	88	37	basic	basic	JJ
cord-291946-kq0rsuxj	88	38	virology	virology	NN
cord-291946-kq0rsuxj	88	39	.	.	.
cord-291946-kq0rsuxj	89	1	The	the	DT
cord-291946-kq0rsuxj	89	2	original	original	JJ
cord-291946-kq0rsuxj	89	3	description	description	NN
cord-291946-kq0rsuxj	89	4	of	of	IN
cord-291946-kq0rsuxj	89	5	REV	REV	NNP
cord-291946-kq0rsuxj	89	6	was	be	VBD
cord-291946-kq0rsuxj	89	7	from	from	IN
cord-291946-kq0rsuxj	89	8	a	a	DT
cord-291946-kq0rsuxj	89	9	tumor	tumor	NN
cord-291946-kq0rsuxj	89	10	taken	take	VBN
cord-291946-kq0rsuxj	89	11	from	from	IN
cord-291946-kq0rsuxj	89	12	a	a	DT
cord-291946-kq0rsuxj	89	13	turkey	turkey	NN
cord-291946-kq0rsuxj	89	14	that	that	WDT
cord-291946-kq0rsuxj	89	15	contained	contain	VBD
cord-291946-kq0rsuxj	89	16	two	two	CD
cord-291946-kq0rsuxj	89	17	viruses	virus	NNS
cord-291946-kq0rsuxj	89	18	.	.	.
cord-291946-kq0rsuxj	90	1	One	one	CD
cord-291946-kq0rsuxj	90	2	,	,	,
cord-291946-kq0rsuxj	90	3	REV	REV	NNP
cord-291946-kq0rsuxj	90	4	-	-	HYPH
cord-291946-kq0rsuxj	90	5	A	A	NNP
cord-291946-kq0rsuxj	90	6	,	,	,
cord-291946-kq0rsuxj	90	7	was	be	VBD
cord-291946-kq0rsuxj	90	8	replication	replication	NN
cord-291946-kq0rsuxj	90	9	-	-	HYPH
cord-291946-kq0rsuxj	90	10	competent	competent	JJ
cord-291946-kq0rsuxj	90	11	,	,	,
cord-291946-kq0rsuxj	90	12	and	and	CC
cord-291946-kq0rsuxj	90	13	the	the	DT
cord-291946-kq0rsuxj	90	14	other	other	JJ
cord-291946-kq0rsuxj	90	15	,	,	,
cord-291946-kq0rsuxj	90	16	REV	REV	NNP
cord-291946-kq0rsuxj	90	17	-	-	HYPH
cord-291946-kq0rsuxj	90	18	T	T	NNP
cord-291946-kq0rsuxj	90	19	,	,	,
cord-291946-kq0rsuxj	90	20	was	be	VBD
cord-291946-kq0rsuxj	90	21	defective	defective	JJ
cord-291946-kq0rsuxj	90	22	,	,	,
cord-291946-kq0rsuxj	90	23	but	but	CC
cord-291946-kq0rsuxj	90	24	carried	carry	VBD
cord-291946-kq0rsuxj	90	25	an	an	DT
cord-291946-kq0rsuxj	90	26	oncogene	oncogene	NN
cord-291946-kq0rsuxj	90	27	called	call	VBN
cord-291946-kq0rsuxj	90	28	Rel	Rel	NNP
cord-291946-kq0rsuxj	90	29	that	that	WDT
cord-291946-kq0rsuxj	90	30	allowed	allow	VBD
cord-291946-kq0rsuxj	90	31	it	-PRON-	PRP
cord-291946-kq0rsuxj	90	32	to	to	TO
cord-291946-kq0rsuxj	90	33	transform	transform	VB
cord-291946-kq0rsuxj	90	34	cells	cell	NNS
cord-291946-kq0rsuxj	90	35	[	[	-LRB-
cord-291946-kq0rsuxj	90	36	23	23	CD
cord-291946-kq0rsuxj	90	37	,	,	,
cord-291946-kq0rsuxj	90	38	24	24	CD
cord-291946-kq0rsuxj	90	39	]	]	-RRB-
cord-291946-kq0rsuxj	90	40	.	.	.
cord-291946-kq0rsuxj	91	1	Rel	Rel	NNP
cord-291946-kq0rsuxj	91	2	,	,	,
cord-291946-kq0rsuxj	91	3	it	-PRON-	PRP
cord-291946-kq0rsuxj	91	4	turns	turn	VBZ
cord-291946-kq0rsuxj	91	5	out	out	RP
cord-291946-kq0rsuxj	91	6	,	,	,
cord-291946-kq0rsuxj	91	7	is	be	VBZ
cord-291946-kq0rsuxj	91	8	a	a	DT
cord-291946-kq0rsuxj	91	9	key	key	JJ
cord-291946-kq0rsuxj	91	10	component	component	NN
cord-291946-kq0rsuxj	91	11	in	in	IN
cord-291946-kq0rsuxj	91	12	the	the	DT
cord-291946-kq0rsuxj	91	13	innate	innate	JJ
cord-291946-kq0rsuxj	91	14	immune	immune	JJ
cord-291946-kq0rsuxj	91	15	signaling	signal	VBG
cord-291946-kq0rsuxj	91	16	pathway	pathway	NN
cord-291946-kq0rsuxj	91	17	[	[	-LRB-
cord-291946-kq0rsuxj	91	18	25	25	CD
cord-291946-kq0rsuxj	91	19	]	]	-RRB-
cord-291946-kq0rsuxj	91	20	,	,	,
cord-291946-kq0rsuxj	91	21	as	as	IN
cord-291946-kq0rsuxj	91	22	a	a	DT
cord-291946-kq0rsuxj	91	23	component	component	NN
cord-291946-kq0rsuxj	91	24	of	of	IN
cord-291946-kq0rsuxj	91	25	the	the	DT
cord-291946-kq0rsuxj	91	26	NF	NF	NNP
cord-291946-kq0rsuxj	91	27	-	-	HYPH
cord-291946-kq0rsuxj	91	28	kB	kb	CD
cord-291946-kq0rsuxj	91	29	transcription	transcription	NN
cord-291946-kq0rsuxj	91	30	factor	factor	NN
cord-291946-kq0rsuxj	91	31	[	[	-LRB-
cord-291946-kq0rsuxj	91	32	26	26	CD
cord-291946-kq0rsuxj	91	33	]	]	-RRB-
cord-291946-kq0rsuxj	91	34	.	.	.
cord-291946-kq0rsuxj	92	1	The	the	DT
cord-291946-kq0rsuxj	92	2	late	late	JJ
cord-291946-kq0rsuxj	92	3	Howard	Howard	NNP
cord-291946-kq0rsuxj	92	4	Temin	Temin	NNP
cord-291946-kq0rsuxj	92	5	adopted	adopt	VBD
cord-291946-kq0rsuxj	92	6	REV	REV	NNP
cord-291946-kq0rsuxj	92	7	and	and	CC
cord-291946-kq0rsuxj	92	8	related	relate	VBN
cord-291946-kq0rsuxj	92	9	viruses	virus	NNS
cord-291946-kq0rsuxj	92	10	as	as	IN
cord-291946-kq0rsuxj	92	11	model	model	NN
cord-291946-kq0rsuxj	92	12	systems	system	NNS
cord-291946-kq0rsuxj	92	13	to	to	TO
cord-291946-kq0rsuxj	92	14	describe	describe	VB
cord-291946-kq0rsuxj	92	15	,	,	,
cord-291946-kq0rsuxj	92	16	among	among	IN
cord-291946-kq0rsuxj	92	17	many	many	JJ
cord-291946-kq0rsuxj	92	18	other	other	JJ
cord-291946-kq0rsuxj	92	19	phenomena	phenomenon	NNS
cord-291946-kq0rsuxj	92	20	,	,	,
cord-291946-kq0rsuxj	92	21	the	the	DT
cord-291946-kq0rsuxj	92	22	kinetics	kinetic	NNS
cord-291946-kq0rsuxj	92	23	of	of	IN
cord-291946-kq0rsuxj	92	24	retroviral	retroviral	JJ
cord-291946-kq0rsuxj	92	25	infections	infection	NNS
cord-291946-kq0rsuxj	92	26	[	[	-LRB-
cord-291946-kq0rsuxj	92	27	27	27	CD
cord-291946-kq0rsuxj	92	28	]	]	-RRB-
cord-291946-kq0rsuxj	92	29	,	,	,
cord-291946-kq0rsuxj	92	30	the	the	DT
cord-291946-kq0rsuxj	92	31	derivation	derivation	NN
cord-291946-kq0rsuxj	92	32	of	of	IN
cord-291946-kq0rsuxj	92	33	cell	cell	NN
cord-291946-kq0rsuxj	92	34	lines	line	NNS
cord-291946-kq0rsuxj	92	35	for	for	IN
cord-291946-kq0rsuxj	92	36	making	make	VBG
cord-291946-kq0rsuxj	92	37	gene	gene	NN
cord-291946-kq0rsuxj	92	38	therapy	therapy	NN
cord-291946-kq0rsuxj	92	39	vectors	vector	NNS
cord-291946-kq0rsuxj	92	40	[	[	-LRB-
cord-291946-kq0rsuxj	92	41	28	28	CD
cord-291946-kq0rsuxj	92	42	]	]	-RRB-
cord-291946-kq0rsuxj	92	43	,	,	,
cord-291946-kq0rsuxj	92	44	and	and	CC
cord-291946-kq0rsuxj	92	45	retrovirus	retrovirus	NN
cord-291946-kq0rsuxj	92	46	mutation	mutation	NN
cord-291946-kq0rsuxj	92	47	and	and	CC
cord-291946-kq0rsuxj	92	48	recombination	recombination	NN
cord-291946-kq0rsuxj	92	49	rates	rate	NNS
cord-291946-kq0rsuxj	92	50	[	[	-LRB-
cord-291946-kq0rsuxj	92	51	29	29	CD
cord-291946-kq0rsuxj	92	52	,	,	,
cord-291946-kq0rsuxj	92	53	30	30	CD
cord-291946-kq0rsuxj	92	54	]	]	-RRB-
cord-291946-kq0rsuxj	92	55	.	.	.
cord-291946-kq0rsuxj	93	1	Global	global	JJ
cord-291946-kq0rsuxj	93	2	trends	trend	NNS
cord-291946-kq0rsuxj	93	3	in	in	IN
cord-291946-kq0rsuxj	93	4	emerging	emerge	VBG
cord-291946-kq0rsuxj	93	5	infectious	infectious	JJ
cord-291946-kq0rsuxj	93	6	diseases	disease	NNS
cord-291946-kq0rsuxj	93	7	SARS	SARS	NNP
cord-291946-kq0rsuxj	93	8	-	-	HYPH
cord-291946-kq0rsuxj	93	9	CoV	CoV	NNP
cord-291946-kq0rsuxj	93	10	and	and	CC
cord-291946-kq0rsuxj	93	11	emergent	emergent	JJ
cord-291946-kq0rsuxj	93	12	coronaviruses	coronaviruse	NNS
cord-291946-kq0rsuxj	93	13	:	:	:
cord-291946-kq0rsuxj	93	14	Viral	viral	JJ
cord-291946-kq0rsuxj	93	15	determinants	determinant	NNS
cord-291946-kq0rsuxj	93	16	of	of	IN
cord-291946-kq0rsuxj	93	17	interspecies	interspecie	NNS
cord-291946-kq0rsuxj	93	18	transmission	transmission	NN
cord-291946-kq0rsuxj	94	1	The	the	DT
cord-291946-kq0rsuxj	94	2	great	great	JJ
cord-291946-kq0rsuxj	94	3	influenza	influenza	NN
cord-291946-kq0rsuxj	94	4	:	:	:
cord-291946-kq0rsuxj	95	1	The	the	DT
cord-291946-kq0rsuxj	95	2	story	story	NN
cord-291946-kq0rsuxj	95	3	of	of	IN
cord-291946-kq0rsuxj	95	4	the	the	DT
cord-291946-kq0rsuxj	95	5	deadliest	deadly	JJS
cord-291946-kq0rsuxj	95	6	pandemic	pandemic	NN
cord-291946-kq0rsuxj	95	7	in	in	IN
cord-291946-kq0rsuxj	95	8	history	history	NN
cord-291946-kq0rsuxj	95	9	.	.	.
cord-291946-kq0rsuxj	96	1	Penguin	Penguin	NNP
cord-291946-kq0rsuxj	96	2	Books	Books	NNP
cord-291946-kq0rsuxj	96	3	Crossspecies	Crossspecies	NNP
cord-291946-kq0rsuxj	96	4	virus	virus	NN
cord-291946-kq0rsuxj	96	5	transmission	transmission	NN
cord-291946-kq0rsuxj	96	6	and	and	CC
cord-291946-kq0rsuxj	96	7	the	the	DT
cord-291946-kq0rsuxj	96	8	emergence	emergence	NN
cord-291946-kq0rsuxj	96	9	of	of	IN
cord-291946-kq0rsuxj	96	10	new	new	JJ
cord-291946-kq0rsuxj	96	11	epidemic	epidemic	NN
cord-291946-kq0rsuxj	96	12	diseases	disease	NNS
cord-291946-kq0rsuxj	96	13	Emerging	emerge	VBG
cord-291946-kq0rsuxj	96	14	virus	virus	NN
cord-291946-kq0rsuxj	96	15	diseases	disease	NNS
cord-291946-kq0rsuxj	97	1	:	:	:
cord-291946-kq0rsuxj	97	2	Can	Can	MD
cord-291946-kq0rsuxj	97	3	we	-PRON-	PRP
cord-291946-kq0rsuxj	97	4	ever	ever	RB
cord-291946-kq0rsuxj	97	5	expect	expect	VB
cord-291946-kq0rsuxj	97	6	the	the	DT
cord-291946-kq0rsuxj	97	7	unexpected	unexpected	JJ
cord-291946-kq0rsuxj	97	8	?	?	.
cord-291946-kq0rsuxj	98	1	How	how	WRB
cord-291946-kq0rsuxj	98	2	the	the	DT
cord-291946-kq0rsuxj	98	3	cows	cow	NNS
cord-291946-kq0rsuxj	98	4	turned	turn	VBD
cord-291946-kq0rsuxj	98	5	mad	mad	JJ
cord-291946-kq0rsuxj	98	6	:	:	:
cord-291946-kq0rsuxj	98	7	Unlocking	unlock	VBG
cord-291946-kq0rsuxj	98	8	the	the	DT
cord-291946-kq0rsuxj	98	9	mysteries	mystery	NNS
cord-291946-kq0rsuxj	98	10	of	of	IN
cord-291946-kq0rsuxj	98	11	mad	mad	JJ
cord-291946-kq0rsuxj	98	12	cow	cow	NN
cord-291946-kq0rsuxj	98	13	disease	disease	NN
cord-291946-kq0rsuxj	98	14	.	.	.
cord-291946-kq0rsuxj	99	1	Schneider	Schneider	NNP
cord-291946-kq0rsuxj	99	2	E	E	NNP
cord-291946-kq0rsuxj	99	3	,	,	,
cord-291946-kq0rsuxj	99	4	translator	translator	NN
cord-291946-kq0rsuxj	99	5	Molecular	molecular	JJ
cord-291946-kq0rsuxj	99	6	epidemiology	epidemiology	NN
cord-291946-kq0rsuxj	99	7	of	of	IN
cord-291946-kq0rsuxj	100	1	simian	simian	JJ
cord-291946-kq0rsuxj	100	2	immunodeficiency	immunodeficiency	NN
cord-291946-kq0rsuxj	100	3	virus	virus	NN
cord-291946-kq0rsuxj	100	4	SIVsm	SIVsm	NNP
cord-291946-kq0rsuxj	100	5	in	in	IN
cord-291946-kq0rsuxj	100	6	U.S.	U.S.	NNP
cord-291946-kq0rsuxj	100	7	primate	primate	NN
cord-291946-kq0rsuxj	100	8	centers	center	NNS
cord-291946-kq0rsuxj	100	9	unravels	unravel	VBZ
cord-291946-kq0rsuxj	100	10	the	the	DT
cord-291946-kq0rsuxj	100	11	origin	origin	NN
cord-291946-kq0rsuxj	100	12	of	of	IN
cord-291946-kq0rsuxj	100	13	SIVmac	SIVmac	NNP
cord-291946-kq0rsuxj	100	14	and	and	CC
cord-291946-kq0rsuxj	100	15	SIVstm	SIVstm	NNP
cord-291946-kq0rsuxj	101	1	The	the	DT
cord-291946-kq0rsuxj	101	2	epidemiology	epidemiology	NN
cord-291946-kq0rsuxj	101	3	and	and	CC
cord-291946-kq0rsuxj	101	4	iatrogenic	iatrogenic	JJ
cord-291946-kq0rsuxj	101	5	transmission	transmission	NN
cord-291946-kq0rsuxj	101	6	of	of	IN
cord-291946-kq0rsuxj	101	7	hepatitis	hepatitis	NN
cord-291946-kq0rsuxj	101	8	C	C	NNP
cord-291946-kq0rsuxj	101	9	virus	virus	NN
cord-291946-kq0rsuxj	101	10	in	in	IN
cord-291946-kq0rsuxj	101	11	Egypt	Egypt	NNP
cord-291946-kq0rsuxj	101	12	:	:	:
cord-291946-kq0rsuxj	102	1	A	a	DT
cord-291946-kq0rsuxj	102	2	Bayesian	bayesian	JJ
cord-291946-kq0rsuxj	102	3	coalescent	coalescent	NN
cord-291946-kq0rsuxj	102	4	approach	approach	NN
cord-291946-kq0rsuxj	103	1	The	the	DT
cord-291946-kq0rsuxj	103	2	origin	origin	NN
cord-291946-kq0rsuxj	103	3	of	of	IN
cord-291946-kq0rsuxj	103	4	AIDS	AIDS	NNP
cord-291946-kq0rsuxj	103	5	Endogenous	endogenous	JJ
cord-291946-kq0rsuxj	103	6	viral	viral	JJ
cord-291946-kq0rsuxj	103	7	elements	element	NNS
cord-291946-kq0rsuxj	103	8	in	in	IN
cord-291946-kq0rsuxj	103	9	animal	animal	NN
cord-291946-kq0rsuxj	103	10	genomes	genome	NNS
cord-291946-kq0rsuxj	103	11	Paleovirology	Paleovirology	NNP
cord-291946-kq0rsuxj	103	12	-Ghosts	-ghost	VBZ
cord-291946-kq0rsuxj	103	13	and	and	CC
cord-291946-kq0rsuxj	103	14	gifts	gift	NNS
cord-291946-kq0rsuxj	103	15	of	of	IN
cord-291946-kq0rsuxj	103	16	viruses	virus	NNS
cord-291946-kq0rsuxj	103	17	past	past	IN
cord-291946-kq0rsuxj	103	18	Genomic	genomic	JJ
cord-291946-kq0rsuxj	103	19	fossils	fossil	NNS
cord-291946-kq0rsuxj	103	20	calibrate	calibrate	VBP
cord-291946-kq0rsuxj	103	21	the	the	DT
cord-291946-kq0rsuxj	103	22	long	long	JJ
cord-291946-kq0rsuxj	103	23	-	-	HYPH
cord-291946-kq0rsuxj	103	24	term	term	NN
cord-291946-kq0rsuxj	103	25	evolution	evolution	NN
cord-291946-kq0rsuxj	103	26	of	of	IN
cord-291946-kq0rsuxj	103	27	hepadnaviruses	hepadnavirus	NNS
cord-291946-kq0rsuxj	104	1	A	a	DT
cord-291946-kq0rsuxj	104	2	transitional	transitional	JJ
cord-291946-kq0rsuxj	104	3	endogenous	endogenous	JJ
cord-291946-kq0rsuxj	104	4	lentivirus	lentivirus	NN
cord-291946-kq0rsuxj	104	5	from	from	IN
cord-291946-kq0rsuxj	104	6	the	the	DT
cord-291946-kq0rsuxj	104	7	genome	genome	NN
cord-291946-kq0rsuxj	104	8	of	of	IN
cord-291946-kq0rsuxj	104	9	a	a	DT
cord-291946-kq0rsuxj	104	10	basal	basal	NN
cord-291946-kq0rsuxj	104	11	primate	primate	NN
cord-291946-kq0rsuxj	104	12	and	and	CC
cord-291946-kq0rsuxj	104	13	implications	implication	NNS
cord-291946-kq0rsuxj	104	14	for	for	IN
cord-291946-kq0rsuxj	104	15	lentivirus	lentivirus	NN
cord-291946-kq0rsuxj	104	16	evolution	evolution	NN
cord-291946-kq0rsuxj	104	17	Interclass	Interclass	NNP
cord-291946-kq0rsuxj	104	18	transmission	transmission	NN
cord-291946-kq0rsuxj	104	19	and	and	CC
cord-291946-kq0rsuxj	104	20	phyletic	phyletic	JJ
cord-291946-kq0rsuxj	104	21	host	host	NN
cord-291946-kq0rsuxj	104	22	tracking	tracking	NN
cord-291946-kq0rsuxj	104	23	in	in	IN
cord-291946-kq0rsuxj	104	24	murine	murine	JJ
cord-291946-kq0rsuxj	104	25	leukemia	leukemia	NN
cord-291946-kq0rsuxj	104	26	virus	virus	NN
cord-291946-kq0rsuxj	104	27	-	-	HYPH
cord-291946-kq0rsuxj	104	28	related	relate	VBN
cord-291946-kq0rsuxj	104	29	retroviruses	retrovirus	NNS
cord-291946-kq0rsuxj	104	30	Origins	origin	NNS
cord-291946-kq0rsuxj	104	31	of	of	IN
cord-291946-kq0rsuxj	104	32	major	major	JJ
cord-291946-kq0rsuxj	104	33	human	human	JJ
cord-291946-kq0rsuxj	104	34	infectious	infectious	JJ
cord-291946-kq0rsuxj	104	35	diseases	disease	NNS
cord-291946-kq0rsuxj	105	1	Multiple	multiple	JJ
cord-291946-kq0rsuxj	105	2	groups	group	NNS
cord-291946-kq0rsuxj	105	3	of	of	IN
cord-291946-kq0rsuxj	105	4	endogenous	endogenous	JJ
cord-291946-kq0rsuxj	105	5	betaretroviruses	betaretroviruse	NNS
cord-291946-kq0rsuxj	105	6	in	in	IN
cord-291946-kq0rsuxj	105	7	mice	mouse	NNS
cord-291946-kq0rsuxj	105	8	,	,	,
cord-291946-kq0rsuxj	105	9	rats	rat	NNS
cord-291946-kq0rsuxj	105	10	,	,	,
cord-291946-kq0rsuxj	105	11	and	and	CC
cord-291946-kq0rsuxj	105	12	other	other	JJ
cord-291946-kq0rsuxj	105	13	mammals	mammal	NNS
cord-291946-kq0rsuxj	105	14	Identification	identification	NN
cord-291946-kq0rsuxj	105	15	of	of	IN
cord-291946-kq0rsuxj	105	16	diverse	diverse	JJ
cord-291946-kq0rsuxj	105	17	full	full	JJ
cord-291946-kq0rsuxj	105	18	-	-	HYPH
cord-291946-kq0rsuxj	105	19	length	length	NN
cord-291946-kq0rsuxj	105	20	endogenous	endogenous	JJ
cord-291946-kq0rsuxj	105	21	betaretroviruses	betaretroviruse	NNS
cord-291946-kq0rsuxj	105	22	in	in	IN
cord-291946-kq0rsuxj	105	23	megabats	megabat	NNS
cord-291946-kq0rsuxj	105	24	and	and	CC
cord-291946-kq0rsuxj	105	25	microbats	microbats	NNP
cord-291946-kq0rsuxj	106	1	A	a	DT
cord-291946-kq0rsuxj	106	2	novel	novel	JJ
cord-291946-kq0rsuxj	106	3	endogenous	endogenous	JJ
cord-291946-kq0rsuxj	106	4	betaretrovirus	betaretrovirus	NNP
cord-291946-kq0rsuxj	106	5	group	group	NN
cord-291946-kq0rsuxj	106	6	characterized	characterize	VBN
cord-291946-kq0rsuxj	106	7	from	from	IN
cord-291946-kq0rsuxj	106	8	polar	polar	JJ
cord-291946-kq0rsuxj	106	9	bears	bear	NNS
cord-291946-kq0rsuxj	106	10	(	(	-LRB-
cord-291946-kq0rsuxj	106	11	Ursus	Ursus	NNP
cord-291946-kq0rsuxj	106	12	maritimus	maritimus	NNP
cord-291946-kq0rsuxj	106	13	)	)	-RRB-
cord-291946-kq0rsuxj	106	14	and	and	CC
cord-291946-kq0rsuxj	106	15	giant	giant	JJ
cord-291946-kq0rsuxj	106	16	pandas	panda	NNS
cord-291946-kq0rsuxj	106	17	(	(	-LRB-
cord-291946-kq0rsuxj	106	18	Ailuropoda	Ailuropoda	NNP
cord-291946-kq0rsuxj	106	19	melanoleuca	melanoleuca	NNP
cord-291946-kq0rsuxj	106	20	)	)	-RRB-
cord-291946-kq0rsuxj	107	1	Retrovirus	retrovirus	NN
cord-291946-kq0rsuxj	107	2	insertion	insertion	NN
cord-291946-kq0rsuxj	107	3	into	into	IN
cord-291946-kq0rsuxj	107	4	herpesviruses	herpesviruses	NNP
cord-291946-kq0rsuxj	107	5	Field	field	NN
cord-291946-kq0rsuxj	107	6	and	and	CC
cord-291946-kq0rsuxj	107	7	vaccine	vaccine	NN
cord-291946-kq0rsuxj	107	8	strains	strain	NNS
cord-291946-kq0rsuxj	107	9	of	of	IN
cord-291946-kq0rsuxj	107	10	fowlpox	fowlpox	NNP
cord-291946-kq0rsuxj	107	11	virus	virus	NN
cord-291946-kq0rsuxj	107	12	carry	carry	VBP
cord-291946-kq0rsuxj	107	13	integrated	integrated	JJ
cord-291946-kq0rsuxj	107	14	sequences	sequence	NNS
cord-291946-kq0rsuxj	107	15	from	from	IN
cord-291946-kq0rsuxj	107	16	the	the	DT
cord-291946-kq0rsuxj	107	17	avian	avian	JJ
cord-291946-kq0rsuxj	107	18	retrovirus	retrovirus	NN
cord-291946-kq0rsuxj	107	19	,	,	,
cord-291946-kq0rsuxj	107	20	reticuloen	reticuloen	NNP
cord-291946-kq0rsuxj	107	21	dotheliosis	dotheliosis	NNP
cord-291946-kq0rsuxj	107	22	virus	virus	NN
cord-291946-kq0rsuxj	108	1	The	the	DT
cord-291946-kq0rsuxj	108	2	extraordinary	extraordinary	JJ
cord-291946-kq0rsuxj	108	3	evolutionary	evolutionary	JJ
cord-291946-kq0rsuxj	108	4	history	history	NN
cord-291946-kq0rsuxj	108	5	of	of	IN
cord-291946-kq0rsuxj	108	6	the	the	DT
cord-291946-kq0rsuxj	108	7	reticuloendotheliosis	reticuloendotheliosis	NN
cord-291946-kq0rsuxj	108	8	viruses	virus	NNS
cord-291946-kq0rsuxj	108	9	Bats	bat	NNS
cord-291946-kq0rsuxj	108	10	are	be	VBP
cord-291946-kq0rsuxj	108	11	a	a	DT
cord-291946-kq0rsuxj	108	12	major	major	JJ
cord-291946-kq0rsuxj	108	13	natural	natural	JJ
cord-291946-kq0rsuxj	108	14	reservoir	reservoir	NN
cord-291946-kq0rsuxj	108	15	for	for	IN
cord-291946-kq0rsuxj	108	16	hepaciviruses	hepaciviruse	NNS
cord-291946-kq0rsuxj	108	17	and	and	CC
cord-291946-kq0rsuxj	109	1	pegiviruses	pegiviruses	NNP
cord-291946-kq0rsuxj	109	2	Characterization	Characterization	NNP
cord-291946-kq0rsuxj	109	3	of	of	IN
cord-291946-kq0rsuxj	109	4	reticuloendotheliosis	reticuloendotheliosis	NNP
cord-291946-kq0rsuxj	109	5	virus	virus	NN
cord-291946-kq0rsuxj	109	6	strain	strain	VBP
cord-291946-kq0rsuxj	109	7	T	T	NNP
cord-291946-kq0rsuxj	109	8	DNA	dna	NN
cord-291946-kq0rsuxj	109	9	and	and	CC
cord-291946-kq0rsuxj	109	10	isolation	isolation	NN
cord-291946-kq0rsuxj	109	11	of	of	IN
cord-291946-kq0rsuxj	109	12	a	a	DT
cord-291946-kq0rsuxj	109	13	novel	novel	JJ
cord-291946-kq0rsuxj	109	14	variant	variant	NN
cord-291946-kq0rsuxj	109	15	of	of	IN
cord-291946-kq0rsuxj	109	16	reticuloendotheliosis	reticuloendotheliosis	NNP
cord-291946-kq0rsuxj	109	17	virus	virus	NN
cord-291946-kq0rsuxj	110	1	strain	strain	VB
cord-291946-kq0rsuxj	110	2	T	T	NNP
cord-291946-kq0rsuxj	110	3	by	by	IN
cord-291946-kq0rsuxj	110	4	molecular	molecular	JJ
cord-291946-kq0rsuxj	110	5	cloning	clone	VBG
cord-291946-kq0rsuxj	110	6	Nucleotide	nucleotide	JJ
cord-291946-kq0rsuxj	110	7	sequence	sequence	NN
cord-291946-kq0rsuxj	110	8	of	of	IN
cord-291946-kq0rsuxj	110	9	v	v	NN
cord-291946-kq0rsuxj	110	10	-	-	HYPH
cord-291946-kq0rsuxj	110	11	rel	rel	NNP
cord-291946-kq0rsuxj	110	12	:	:	:
cord-291946-kq0rsuxj	111	1	The	the	DT
cord-291946-kq0rsuxj	111	2	oncogene	oncogene	NN
cord-291946-kq0rsuxj	111	3	of	of	IN
cord-291946-kq0rsuxj	111	4	reticuloendotheliosis	reticuloendotheliosis	NN
cord-291946-kq0rsuxj	111	5	virus	virus	NN
cord-291946-kq0rsuxj	111	6	Regulated	Regulated	NNP
cord-291946-kq0rsuxj	111	7	nuclear	nuclear	JJ
cord-291946-kq0rsuxj	111	8	import	import	NN
cord-291946-kq0rsuxj	111	9	of	of	IN
cord-291946-kq0rsuxj	111	10	Rel	Rel	NNP
cord-291946-kq0rsuxj	111	11	proteins	protein	NNS
cord-291946-kq0rsuxj	111	12	in	in	IN
cord-291946-kq0rsuxj	111	13	the	the	DT
cord-291946-kq0rsuxj	111	14	Drosophila	drosophila	JJ
cord-291946-kq0rsuxj	111	15	immune	immune	JJ
cord-291946-kq0rsuxj	111	16	response	response	NN
cord-291946-kq0rsuxj	111	17	NF	nf	NN
cord-291946-kq0rsuxj	111	18	-	-	HYPH
cord-291946-kq0rsuxj	111	19	kappa	kappa	NN
cord-291946-kq0rsuxj	111	20	B	B	NNP
cord-291946-kq0rsuxj	111	21	,	,	,
cord-291946-kq0rsuxj	111	22	KBF1	KBF1	NNP
cord-291946-kq0rsuxj	111	23	,	,	,
cord-291946-kq0rsuxj	111	24	dorsal	dorsal	JJ
cord-291946-kq0rsuxj	111	25	,	,	,
cord-291946-kq0rsuxj	111	26	and	and	CC
cord-291946-kq0rsuxj	111	27	related	related	JJ
cord-291946-kq0rsuxj	111	28	matters	matter	NNS
cord-291946-kq0rsuxj	112	1	Replication	replication	NN
cord-291946-kq0rsuxj	112	2	of	of	IN
cord-291946-kq0rsuxj	112	3	reticuloendotheliosis	reticuloendotheliosis	NN
cord-291946-kq0rsuxj	112	4	viruses	virus	NNS
cord-291946-kq0rsuxj	112	5	in	in	IN
cord-291946-kq0rsuxj	112	6	cell	cell	NN
cord-291946-kq0rsuxj	112	7	culture	culture	NN
cord-291946-kq0rsuxj	112	8	:	:	:
cord-291946-kq0rsuxj	112	9	acute	acute	JJ
cord-291946-kq0rsuxj	112	10	infection	infection	NN
cord-291946-kq0rsuxj	112	11	Construction	construction	NN
cord-291946-kq0rsuxj	112	12	of	of	IN
cord-291946-kq0rsuxj	112	13	a	a	DT
cord-291946-kq0rsuxj	112	14	helper	helper	NN
cord-291946-kq0rsuxj	112	15	cell	cell	NN
cord-291946-kq0rsuxj	112	16	line	line	NN
cord-291946-kq0rsuxj	112	17	for	for	IN
cord-291946-kq0rsuxj	112	18	avian	avian	JJ
cord-291946-kq0rsuxj	112	19	reticuloendotheliosis	reticuloendotheliosis	NN
cord-291946-kq0rsuxj	112	20	virus	virus	NN
cord-291946-kq0rsuxj	112	21	cloning	clone	VBG
cord-291946-kq0rsuxj	112	22	vectors	vector	NNS
cord-291946-kq0rsuxj	112	23	Lower	lower	RBR
cord-291946-kq0rsuxj	112	24	in	in	IN
cord-291946-kq0rsuxj	112	25	vivo	vivo	NN
cord-291946-kq0rsuxj	112	26	mutation	mutation	NN
cord-291946-kq0rsuxj	112	27	rate	rate	NN
cord-291946-kq0rsuxj	112	28	of	of	IN
cord-291946-kq0rsuxj	112	29	human	human	JJ
cord-291946-kq0rsuxj	112	30	immunodeficiency	immunodeficiency	NN
cord-291946-kq0rsuxj	112	31	virus	virus	NN
cord-291946-kq0rsuxj	112	32	type	type	NN
cord-291946-kq0rsuxj	112	33	1	1	CD
cord-291946-kq0rsuxj	113	1	than	than	IN
cord-291946-kq0rsuxj	113	2	that	that	DT
cord-291946-kq0rsuxj	113	3	predicted	predict	VBD
cord-291946-kq0rsuxj	113	4	from	from	IN
cord-291946-kq0rsuxj	113	5	the	the	DT
cord-291946-kq0rsuxj	113	6	fidelity	fidelity	NN
cord-291946-kq0rsuxj	113	7	of	of	IN
cord-291946-kq0rsuxj	113	8	purified	purify	VBN
cord-291946-kq0rsuxj	113	9	reverse	reverse	NN
cord-291946-kq0rsuxj	113	10	transcriptase	transcriptase	NN
cord-291946-kq0rsuxj	113	11	Retroviral	retroviral	NN
cord-291946-kq0rsuxj	113	12	recombination	recombination	NN
cord-291946-kq0rsuxj	113	13	and	and	CC
cord-291946-kq0rsuxj	113	14	reverse	reverse	VB
cord-291946-kq0rsuxj	113	15	transcription	transcription	NN
cord-291946-kq0rsuxj	114	1	We	-PRON-	PRP
cord-291946-kq0rsuxj	114	2	thank	thank	VBP
cord-291946-kq0rsuxj	114	3	Kristopher	Kristopher	NNP
cord-291946-kq0rsuxj	114	4	Azarm	Azarm	NNP
cord-291946-kq0rsuxj	114	5	,	,	,
cord-291946-kq0rsuxj	114	6	Jesse	Jesse	NNP
cord-291946-kq0rsuxj	114	7	Bloom	Bloom	NNP
cord-291946-kq0rsuxj	114	8	,	,	,
cord-291946-kq0rsuxj	114	9	Patrick	Patrick	NNP
cord-291946-kq0rsuxj	114	10	Mitchell	Mitchell	NNP
cord-291946-kq0rsuxj	114	11	,	,	,
cord-291946-kq0rsuxj	114	12	Cristina	Cristina	NNP
cord-291946-kq0rsuxj	114	13	Wittkopp	Wittkopp	NNP
cord-291946-kq0rsuxj	114	14	,	,	,
cord-291946-kq0rsuxj	114	15	and	and	CC
cord-291946-kq0rsuxj	114	16	Janet	Janet	NNP
cord-291946-kq0rsuxj	114	17	Young	Young	NNP
cord-291946-kq0rsuxj	114	18	for	for	IN
cord-291946-kq0rsuxj	114	19	their	-PRON-	PRP$
cord-291946-kq0rsuxj	114	20	comments	comment	NNS
cord-291946-kq0rsuxj	114	21	.	.	.