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General Information on Avian Influenza

This website is archived and is no longer being maintained or updated. For updated information on avian influenza, see the CDC Avian Influenza website and the World Health Organization (WHO) Avian Influenza Situation Update page.

This section provides background information about avian influenza (bird flu), including the viruses, and the risk to human health.

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• Influenza (Flu)


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