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Many Beijing SARS cases can't be traced back
Email: Robert Walgate - walgate@scienceanalysed.com News from The Scientist 2003, 4(1):20030520-03
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GENEVA—The World Health Assembly (WHA) has been told that 60 to 80% of severe acute respiratory syndrome (SARS) cases in Beijing, diagnosed by the symptomatic case definition of the disease, can't be traced back to a known SARS case, and other viruses could be involved. So said David Heymann, executive director of Communicable Diseases for the World Health Organization (WHO), speaking in Geneva yesterday (May 19).
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