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Pastimes : SARS - what next?
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To: Maurice Winn who wrote (599)6/25/2003 11:07:57 PM
From: Henry Niman   of 1070
 
>>But I admit that I don't know quite what an RNA virus is and just how many changes of clothes the sars bug can do over a few years<<

I think your time frame is a bit off. I haven't seen all of the data, but looking at presentation slides suggests that the virus emerged in Nov 2002. By Feb 21, 2003 the virus in the Metropole Hotel had already had a 29 nt deletion and 7 Metropole Hotel linked stable mutations which have been found in all published sequenced isolates traced to the Hotel. The isolates were from Toronto, Bangkok, Hong Kong, Singapore, Taiwan, and Shenzhen (and it seems likely that the mutations would also be in mainland China outbreaks seeded by 23 passengers on flight attendants on Air China flight CA 112 which went from Hong Kong to Beijing on March 15, 2003.

The virus is probably silently spreading via mild and/or asymptomatic cases. I think you will be in for a MAJOR surprise when cold/flu season returns in the fall/winter.
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