H1N1

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  H5N1

  Influenza A virus subtype H5N1, also known as "bird flu", A(H5N1) or simply H5N1, is a subtype of the influenza A virus which can cause illness in humans and many other animal species. A bird-adapted strain of H5N1, called HPAI A(H5N1) for "highly pathogenic avian influenza virus of type A of...
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  Orthomyxoviridae

  The Orthomyxoviridae (orthos, Greek for "straight"; myxa, Greek for "mucus") are a family of RNA viruses that includes five genera: Influenzavirus A, Influenzavirus B, Influenzavirus C, Isavirus and Thogotovirus. A sixth has recently been described. The first three genera contain viruses that cause...

• H7N7

  H7N7 is a subtype of Influenzavirus A, a genus of Orthomyxovirus, the viruses responsible for influenza. Highly pathogenic strains (HPAI) and low pathogenic strains (LPAI) exist. H7N7 can infect humans, birds, pigs, seals, and horses in the wild; and has infected mice in laboratory studies. This...

• H5N8

  The family of Influenza viruses belong to the Orthomyxoviruses. They all range in severity but cause respiratory infection in the host animal. There are several subtypes of the Influenza A virus. This virus is more commonly known as the "bird flu" in that infects mostly avian species although some...

• H7N1

  H7N1 is a subtype of the species Influenza A virus (sometimes called bird flu virus). A highly pathogenic strain of it caused a flu outbreak with significant spread to numerous farms, resulting in great economic losses in 1999 in Italy in turkeys.

• H5N2

  H5N2 is a subtype of the species Influenzavirus A (avian influenza virus or bird flu virus). Low pathogenic avian inluenza H5N2 virus in poultry later gained accentuated virulence in the United States and Mexico. A highly pathogenic strain of H5N2 caused flu outbreaks with significant spread to...

• H5N9

  H5N9 is a subtype of the species Influenza A virus (sometimes called bird flu virus). A highly pathogenic strain of H5N9 caused a minor flu outbreak in 1966 in Ontario and Manitoba, Canada in turkeys.

• H7N4

  H7N4 is a subtype of the species Influenza A virus (sometimes called bird flu virus). A highly pathogenic strain of it caused a minor flu outbreak in 1997 in New South Wales, Australia in chicken.

• H7N2

  H7N2 is a subtype of the species Influenza A virus (sometimes called bird flu virus). A CDC study following outbreaks of H7N2 in commercial poultry farms in western Virginia in 2002 concluded: One person in Virginia, United States in 2002 and one person in New York, United States, in 2003 were...

• H7N3

  H7N3 is a subtype of the species Influenza A virus (sometimes called bird flu virus). In North America, the presence of H7N3 was confirmed at several poultry farms in British Columbia in February 2004. As of April 2004, 18 farms had been quarantined to halt the spread of the virus. Two cases of...