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Genetic characterization of H9N2 avian influenza virus previously unrecognized in Korea

Journal of Veterinary Science 2021년 22권 2호 p.21 ~ 21
허경, 계수정, 사공민근, 이은경, 이광녕, 이유나, 최강석, 이명헌, 이윤정,
소속 상세정보
허경 ( Heo Gyeong-Beom ) - Animal and Plant Quarantine Agency
계수정 ( Kye Soo-Jeong ) - Animal and Plant Quarantine Agency
사공민근 ( Sagong Min-Geun ) - Animal and Plant Quarantine Agency
이은경 ( Lee Eun-Kyoung ) - Animal and Plant Quarantine Agency
이광녕 ( Lee Kwang-Nyeong ) - Animal and Plant Quarantine Agency
이유나 ( Lee Yu-Na ) - Animal and Plant Quarantine Agency
최강석 ( Choi Kang-Seuk ) - Seoul National University College of Veterinary Medicine
이명헌 ( Lee Myoung-Heon ) - Animal and Plant Quarantine Agency
이윤정 ( Lee Youn-Jeong ) - Animal and Plant Quarantine Agency

Abstract


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.

키워드

Avian influenza; H9N2; live bird market; phylogenetic analysis; surveillance

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