title: [Distribution of avian influenza virus subtypes among domestic ducks in eastern China].
abstract: OBJECTIVE
  To identify the distribution of avian influenza virus subtypes among domestic ducks in eastern China.
  
  
  METHODS
  One hundred and eighty avian influenza viruses isolated from domestic ducks between 2002 and 2006 were tested for their Hemagglutinin subtypes, and 88 of them were followed by monitoring for Neuraminidase (NA) subtypes.
  
  
  RESULTS
  At least 9 HA subtypes and 6 NA subtypes, which constituted 13 subtypes of avian influenza viruses in domestic ducks, including H1N1, H3N1, H3N2, H3N8, H4N6, H5N1, H5N2, H6N2, H6N8, H8N4, H9N2, H10N3 and H11N2, were circulating in eastern China in recent years.
  
  
  CONCLUSIONS
  Multiple subtypes of avian influenza viruses were distributed among domestic ducks in eastern China in recent years. The surveillance and prevention of avian influenza viruses in domestic ducks must be strengthened.
authors.affiliation: Key Laboratory of Animal Infectious Diseases of Ministry of Agriculture, University, Yangzhou 225009, China. baofengqui2008@yahoo.cn
authors.forename: Baofeng
authors.initials: B
authors.lastname: Qiu
authors.forename: Wujie
authors.initials: W
authors.lastname: Liu
authors.forename: Daxin
authors.initials: D
authors.lastname: Peng
authors.forename: Shunlin
authors.initials: S
authors.lastname: Hu
authors.forename: Xiufan
authors.initials: X
authors.lastname: Liu
mesh_terms: D000818:Animals; D000829:Animals, Domestic / Q000821:virology; D002681:China / Q000453:epidemiology; D004372:Ducks; D019267:Hemagglutinin Glycoproteins, Influenza Virus / Q000235:genetics; D009980:Influenza A virus / Q000145:classification / Q000235:genetics* / Q000302:isolation & purification; D005585:Influenza in Birds / Q000453:epidemiology / Q000821:virology*; D008969:Molecular Sequence Data; D009439:Neuraminidase / Q000235:genetics; D010802:Phylogeny
chemical_list: D019267:Hemagglutinin Glycoproteins, Influenza Virus; C109963:hemagglutinin, avian influenza A virus; D009439:Neuraminidase