id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-021552-6jbm869r	HURST, CHRISTON J.	Relationship Between Humans and Their Viruses	2007-05-09		.txt	text/plain	7828	395	43	Viral replication ~ at the individual host level, the primary tissue and organ tropisms are toward the cervix, conjunctiva, pharynx, small intestine, and urethra; the secondary tissue and organ tropisms are toward the brain, kidney, lungs, and lymph nodes; at the host population level, these viruses generally are endemic and initially acquired at a very early age, with the infections very often asymptomatic in young children. ~ral replication ~ at the individual host level, primary tissue and organ tropisms are toward the small intestine; secondary tissue and organ tropisms are toward the liver; at the host population level, these tend to be epidemic within human populations; for the hepatitis E virus it seems that acquisition occurs from swine, with the result being epidemics (often very widespread) of human disease; some acquisition from animals may come from eating infected animals; subsequent transmission of all caliciviruses within human populations is by fecally contaminated waste and thus can be very widespread. Alternate hosts: One species of viral family Hepadnaviridae (hepatitis B virus) is known to infect humans, and it seems naturally limited to humans.	./cache/cord-021552-6jbm869r.txt	./txt/cord-021552-6jbm869r.txt