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KMID : 0893420210220020021
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Journal of Veterinary Science
2021 Volume.22 No. 2 p.21 ~ p.21
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Genetic characterization of H9N2 avian influenza virus previously unrecognized in Korea
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Heo Gyeong-Beom
Kye Soo-Jeong
Sagong Min-Geun
Lee Eun-Kyoung
Lee Kwang-Nyeong
Lee Yu-Na
Choi Kang-Seuk
Lee Myoung-Heon
Lee Youn-Jeong
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Abstract
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In this study, we describe the isolation and characterization of previously unreported Y280-lineage H9N2 viruses from two live bird markets in Korea in June 2020. Genetic analysis revealed that they were distinct from previous H9N2 viruses circulating in Korea and had highest homology to A/chicken/Shandong/1844/2019(H9N2) viruses. Their genetic constellation showed they belonged to genotype S, which is the predominant genotype in China since 2010, where genotype S viruses have infected humans and acted as internal gene donors to H5 and H7 zoonotic influenza viruses. Active surveillance and control measures need to be enhanced to protect the poultry industry and public health.
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KEYWORD
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Avian influenza, H9N2, live bird market, phylogenetic analysis, surveillance
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