More Infective H5N1 Flu Strain Emerging?

Discussion in 'Current Affairs, News and Analysis' started by Not_Whistlin_Dixie, Jan 15, 2006.

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  1. A virus engages a host cell in a manner somewhat similar to the way a key fits a lock. The host cell's receptor sites must be stereochemically compatible with antigens expressed on the surface of the virus's outer protein jacket.

    If this compatibility is totally lacking, the virus cannot infect a host. That's one reason why a man cannot be infected by a tobacco virus and a tobacco plant can't develop measles.

    Hemagglutinin is a protein believed to facilitate binding of influenza virus particles onto endothelial cells inside the respiratory tree.

    The linked article from asserts the emergency in Turkey of a genetic mutation so altering hemagglutinin synthesis as to make the virus more efficiently transmissible from person-to-person.

    "Efficient Transmission of H5N1 to Humans in Turkey" 15 January 2006

    Uncertainty as to the number of human cases leaves a lot of room for conjecture as to just how big a menace we are facing.
  2. These God Bothering Yanks who believe in evolutionism, must have an answer for this apparent evolution of a virus eh?
  3. The article also says:-

    "H5N1 transmission to humans is clearly more efficient in Turkey, and the large number of family members confirmed or hospitalized is cause for concern."

    This does NOT mean it is transmitting from person to person as you suggest. It means its transmission from bird to human may be more effiicient. As to the uncertainty over how many human cases there might be in any future influenza pandemic first a strain that transmits between people would have to emerge, however the Department of Health estimates (using historical data) that about 25% of the population would be affected but the range could be as low as 10% or as high as 50%.
  4. I'm tired of the hypocrisy about bird flu. Women were not so sympathetic when dealing with man flu were they?