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Biotech / Medical : SARS and Avian Flu -- Ignore unavailable to you. Want to Upgrade?

To: Henry Niman who wrote (970)	9/2/2003 1:05:17 PM
From: Icebrg	Respond to of 4232

>> The issue of co-factors is still wide open. Most viral respiratory illnesses are seasonal. In the US, graphs of testing for flu do not even included data between May and October. The illness essentially "disappears" only to reappear each fall. The reasons for this are not clear. I could give a long list, but there is little hard evidence for individual factors, but overall, flu is very seasonal.>> Yes, the seasonality is both interesting and confusing. For an overview over different seasonal patterns as well as a suggestion of what might lie behind these patterns: Seasonal Variation in Host Susceptibility and Cycles of Certain Infectious Diseases Scott F. Dowell Centers for Disease Control and Prevention, Atlanta, Georgia, USA cdc.gov Not that he necessarily is right in his hypothesis, but it is an interesting article. Erik