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2024-3-29 18:12:13


Sagong M, Lee KN, Lee EK, Kang H, Choi YK, Lee YJ. Current situation and control strategies of H9N2 avian influenza in South Korea. J Vet Sci. 2022 Dec 5
submited by kickingbird at Dec, 27, 2022 9:44 AM from J Vet Sci. 2022 Dec 5

The H9N2 avian influenza (AI) has become endemic in poultry in many countries since the 1990s, which has caused considerable economic losses in the poultry industry. Considering the long history of the low pathogenicity H9N2 AI in many countries, once H9N2 AI is introduced, it is more difficult to eradicate than high pathogenicity AI. Various preventive measures and strategies, including vaccination and active national surveillance, have been used to control the Y439 lineage of H9N2 AI in South Korea, but it took a long time for the H9N2 virus to disappear from the fields. By contrast, the novel Y280 lineage of H9N2 AI was introduced in June 2020 and has spread nationwide. This study reviews the history, genetic and pathogenic characteristics, and control strategies for Korean H9N2 AI. This review may provide some clues for establishing control strategies for endemic AIV and a newly introduced Y280 lineage of H9N2 AI in South Korea.

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