[Distribution of avian influenza virus subtypes among domestic ducks in eastern China].
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.
Qiu
Baofeng
B
Key Laboratory of Animal Infectious Diseases of Ministry of Agriculture, University, Yangzhou 225009, China. baofengqui2008@yahoo.cn
Liu
Wujie
W
Peng
Daxin
D
Hu
Shunlin
S
Liu
Xiufan
X
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
D019267:Hemagglutinin Glycoproteins, Influenza Virus; C109963:hemagglutinin, avian influenza A virus; D009439:Neuraminidase