期刊
VETERINARY MICROBIOLOGY
卷 118, 期 3-4, 页码 169-176出版社
ELSEVIER
DOI: 10.1016/j.vetmic.2006.07.007
关键词
avian influenza virus; H9N2; chicken
H9N2 influenza viruses are endemic in many Asian countries. We demonstrated that H9N2 influenza viruses isolated from poultry in Korean live bird markets are genetically changing and could cause the clinical signs in layers. Genetic analysis showed that Korean avian H9N2 influenza viruses are distinct from H9N2 influenza viruses circulating in poultry in China and Hong Kong. When we infected layers with H9N2 isolates, layers showed about 30% mortality and the reduction of egg productions. Considering that H9N2 influenza virus is one of potential pandemic candidates, the continuous surveillance is needed to monitor avian H9N2 influenza viruses for the poultry industry and humans. (c) 2006 Elsevier B.V. All rights reserved.
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