id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-265350-k9yus2sv	Han, Guan-Zhu	Pangolins Harbor SARS-CoV-2-Related Coronaviruses	2020-04-06		.txt	text/plain	1217	94	59	Several recent studies identified SARS-CoV-2-related viruses in Malayan pangolins (Manis javanica), providing new insights into the host distribution and evolution of SARS-CoV-2-related viruses [3] [4] [5] [6] [7] . SARS-CoV and SARS-CoV-2 have been taxonomically classified into a single viral species, Severe acute respiratory syndrome-related coronavirus [8] . Whereas SARS-CoV and Middle East respiratory syndrome coronavirus (MERS-CoV), two highly contagious CoVs that emerged in humans during the past two decades, might ultimately have bat origins, both of them were introduced into human populations through intermediate hosts [9] . Phylogenetic analysis based on the synonymous sites of RBD, whose evolution is less likely to be influenced by natural selection, shows that RaTG13 is more closely related to SARS-CoV-2 than are the GD pangolin CoVs (Figure 1B) , indicating that the high amino acid similarity between the GD pangolin CoVs and SARS-CoV-2 in the RBD might be due to convergent evolution [3] .	./cache/cord-265350-k9yus2sv.txt	./txt/cord-265350-k9yus2sv.txt