id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-297418-36j840wm	Carneiro Leão, Jair	Coronaviridae ‐ old friends, new enemy!	2020-05-31		.txt	text/plain	3978	263	53	However, in recent years, coronaviruses have given rise to significant diseases such as severe acute respiratory syndrome (SARS-CoV) and Middle Eastern respiratory syndrome coronavirus (MERS-CoV) SARS-CoV infected 8,000 people, from 2002 to 2003 and had a mortality rate of approximately 10% (Marra et al., 2003) . On the other hand, evolutionary analysis based on the ORF1a / 1b, S and N genes suggests that SARS-CoV-2 is more likely to be a new coronavirus that has been introduced independently from animals to humans due to the inherent mutation property of coronaviruses in nature (Lam et al., 2020) . Severe acute respiratory syndrome (SARS) is a human disease associated with severe pneumonia and as noted above is caused by SARS-Coronavirus (SARS-CoV) (Drosten et al., 2003) . The species Severe acute respiratory syndrome-related coronavirus: classifying 2019-nCoV and naming it SARS-CoV-2 Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and coronavirus disease-2019 (COVID-19): The epidemic and the challenges	./cache/cord-297418-36j840wm.txt	./txt/cord-297418-36j840wm.txt