id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-324301-bzrh2fni	Zambon, Maria	Influenza, respiratory syncytial virus and SARS	2005-05-01		.txt	text/plain	2978	178	43	The recent emergence of the SARS coronavirus in the human population in 2003, with an ensuing global epidemic affecting more than 8000 individuals with a case fatality of about 10%, underlines the fact that respiratory viral infections of humans may originate in animals, and that many different influenza A viruses also occur naturally in animal reservoirs, representing a constant threat of zoonotic infections of humans and ensuing global pandemics. About 30-50% of acute LRTIs are viral in origin; of these, influenza and respiratory syncytial virus (RSV) are associated with the greatest disease burden in humans. About 30-50% of acute LRTIs are viral in origin; of these, influenza and respiratory syncytial virus (RSV) are associated with the greatest disease burden in humans. Seasonal illness, epidemics and pandemics -influenza viruses circulating in humans (A H1N1, H3N2, B and C) cause respiratory tract disease.	./cache/cord-324301-bzrh2fni.txt	./txt/cord-324301-bzrh2fni.txt