数字农科院2.0

Highly Pathogenic Avian Influenza A(H5Nx) Virus of Clade 2.3.4.4b Emerging in Tibet, China, 2021

文献类型： 外文期刊

作者： Li, Yi;Li, Xiang;Lv, Xinru;Xu, Qiuzi;Zhao, Zhenliang;Qin, Siyuan;Peng, Peng;Qu, Fengyi;Qin, Rongxiu;An, Qing;Wang, Meixi;Zhang, Zhen;Luo, Hua;Zeng, Xiangwei;Wang, Yulong;Hou, Zhijun;Sun, Heting;Wang, Yajun;Xu, Yu;Li, Yanbing;Chai, Hongliang

作者机构：

关键词： HPAIV;clade 2;3;4;4b;migratory birds

期刊名称： MICROBIOLOGY SPECTRUM

ISSN： 2165-0497

年卷期： 2022 年

页码：

收录情况： SCIE（2022版）

摘要： H5N8 and H5N1 highly pathogenic avian influenza viruses (AIVs) of clade 2.3.4.4b were isolated from dead migratory birds and fecal samples collected in Tibet, China, in May 2021. Phylogenetic analyses showed that the viruses isolated in this study may have spread from wintering or stopover grounds of migratory birds in South Asia. We monitored two disparate clade 2.3.4.4b H5Nx viruses in migratory birds in Tibet during their breeding season. The data revealed that breeding grounds may exhibit a potential pooling effect among avian influenza viruses in different migratory populations. IMPORTANCE In this study, 15 H5N8 and two H5N1 highly pathogenic avian influenza viruses of clade 2.3.4.4b were isolated from dead migratory birds and fecal samples in Tibet, China. Isolates of H5N1 virus of clade 2.3.4.4b have been rarely reported in China. Our findings highlight that breeding grounds may exhibit a potential pooling effect among avian influenza viruses (AIVs) in different migratory populations. In addition to intensification of the surveillance of AIVs in migratory birds in Tibet, China, international cooperation should be strengthened. In this study, 15 H5N8 and two H5N1 highly pathogenic avian influenza viruses of clade 2.3.4.4b were isolated from dead migratory birds and fecal samples in Tibet, China. Isolates of H5N1 virus of clade 2.3.4.4b have been rarely reported in China.

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