id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-257652-ndt8f812	Zhang, Yong-Zhen	The diversity, evolution and origins of vertebrate RNA viruses	2018-08-13		.txt	text/plain	4249	171	40	In addition, despite frequent cross-species transmission, the RNA viruses in vertebrates generally follow the evolutionary history of their hosts, which began in the oceans and then moved to terrestrial habitats over timescales covering hundreds of millions of years. In addition, despite frequent cross-species transmission, the RNA viruses in vertebrates generally follow the evolutionary history of their hosts, which began in the oceans and then moved to terrestrial habitats over timescales covering hundreds of millions of years. However, following the extensive use of PCR and the Sanger sequencing methods for virus identification over the past decade, the number of RNA viruses sampled from lower vertebrates has steadily increased [28] , with notable examples being arenavirus and paramyxoviruses in reptiles [29] , and novirhabdoviruses and other RNA viruses from fish [30] , although these numbers were still very limited compared to the viruses described in birds and mammals.	./cache/cord-257652-ndt8f812.txt	./txt/cord-257652-ndt8f812.txt