id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-009153-zxx4m1kz	Heymann, David L	Dangerous pathogens in the laboratory: from smallpox to today's SARS setbacks and tomorrow's polio-free world	2004-05-15		.txt	text/plain	2790	147	48	THE LANCET • Vol 363 • May 15, 2004 • www.thelancet.com COMMENTARY Less than a year after an unprecedented international public-health effort interrupted human-to-human transmission of the coronavirus that causes severe acute respiratory syndrome (SARS-CoV), some human beings are again infected. 2 Auspiciously, the new SARS cases are occurring as WHO's Biosafety Advisory Group prepares to examine the long-term containment of poliovirus stocks, the risks of which will rapidly increase after interruption of transmission and the ending of immunisation with oral poliovirus vaccine. 3 The recent outbreak of nine cases of SARS in China, with one death, underlines again the challenges of maintaining appropriate biosafety conditions in laboratories working with dangerous pathogens. During the SARS outbreak last year, many specimens were obtained from human cases of SARS COMMENTARY Dangerous pathogens in the laboratory: from smallpox to today's SARS setbacks and tomorrow's polio-free world and sent to many different national and international laboratories for various studies.	./cache/cord-009153-zxx4m1kz.txt	./txt/cord-009153-zxx4m1kz.txt