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[Photo: CDC / Courtesy of Cynthia Goldsmith, Jacqueline Katz, and Sherif R. Zaki]
Bird flu
Avian Influenza Virus
Description: Avian Influenza is a highly contagious disease caused by type A influenza virus. There virus takes two forms: Highly Pathogenic Avian Influenza (HPAI), which is highly lethal among domestic poultry, and Low Pathogenic Avian Influenza (LPAI), a milder form.
Life History: Waterfowl are natural carriers for the disease and do not show signs of infection. AI can be transmitted through the respiratory secretions or feces of infected birds. Direct contact with items exposed to the virus can also spread the virus.
Habitat: Waterbirds, especially Ducks, Geese, and Swans are a natural reservoir for Avian Influenza, which requires a host to reproduce.
Distribution: First known from Italy, outbreaks recorded worldwide. Asia often is the point of origin for new outbreak
Resources: Ecology of Avian Influenza Virus (Global Invasive Species Database) Invasive Species - Microbes - Avian Influenza Species Profile (National Invasive Species Information Center) Avian Influenza Overview - Avian Influenza overview, fact sheet, news, literature, research, maps, data, and images (NBII Wildlife Disease Information Node)
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