PandemicFlu.gov The official U.S. government Web site for information on pandemic flu and avian influenza.
Centers for Disease Control and Prevention
Avian Influenza (Bird Flu) This Web page provides background information about avian influenza, including recent outbreaks, the viruses, and the risk to human health.
Bird flu (avian influenza) Overview
U.S. Department of State
Avian Influenza Fact Sheet
U.S. Agency of International Development
Avian Influenza Response
U.S. Department of Agriculture: Agricultural Research Service
News & Events: Avian Influenza