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Politics : PRESIDENT GEORGE W. BUSH -- Ignore unavailable to you. Want to Upgrade?


To: TigerPaw who wrote (125712)2/6/2001 6:24:33 PM
From: Ish  Read Replies (1) | Respond to of 769667
 
<<Which brings up the question of whether mosquitos are likely to feed on Ebola victims. If they are feverish I doubt it. If they don't live long enough to be a likely target, then I doubt it. It's not an area I am familiar enough to know for sure.>>

You do have the time period before the illness gets real bad. I have read where when you get the symptoms of a cold you quit shedding viruses. But like you said it only takes one mutation in one generation.....



To: TigerPaw who wrote (125712)2/6/2001 7:48:31 PM
From: Patricia Trinchero  Respond to of 769667
 
In many cases a recipient host sheds virus before he or she is symptomatic. Therefore, one is infectious before one " comes down with " the disease.

Virus' are obligate intracellular parasites. They can only replicate when they are inside the individual cells of their host. A virus is a strand of DNA or RNA and they hook up into the cell's DNA and RNA. If one small protein gets out of order then the virus might change it's genetic makeup and therefore mutate. That is why each year the flu is different from the flu from the previous year. It has passed through so many hosts it has mutated. Since they make each year's flu vaccine with last year's flu virus it is usually different from the one causing the current epidemic.

I worked for a well renowned Immunologist who NEVER got a flu shot cause he considered it worthless for the above stated reasons.