Identification of D/Yama2019 Lineage-Like Influenza D Virus in Chinese Cattle

文献类型： 外文期刊

第一作者： Yu, Jieshi

作者： Yu, Jieshi;Wu, Siyu;Wang, Zhilin;Wei, Wen-Kang;Yu, Jieshi;Zhai, Shao-Lun;Liao, Ming;Li, Tianyu;Li, Tianyu;Zheng, Jiaying;Chen, Mingwang;Chen, Faming;Wen, Zhenyu;Liao, Ming;Zhai, Shao-Lun;Liao, Ming

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关键词： influenza D virus; genetic lineage; phylogenetic analysis; cattle; China

期刊名称：FRONTIERS IN VETERINARY SCIENCE （ 影响因子：3.471； 五年影响因子：3.821 ）

ISSN：

年卷期： 2022 年 9 卷

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收录情况： SCI

摘要： Outbreaks of influenza D virus (IDV) continue to be reported in many countries. On the basis of the hemagglutinin-esterase fusion (HEF) gene, five IDV genetic lineages have been identified: D/OK, D/660, D/Yama2016, D/Yama2019 and D/CA2019 lineages. Previously reported IDV strains in China all form a sub-clade (D/China sub-lineage) within D/OK lineage. From October 2021 to February 2022, nasal swab samples (n = 250) were collected from apparently healthy cattle in slaughterhouses around the city of Guangzhou, China, and screened for IDV by RT-PCR. Ten samples were positive for IDV. An IDV strain with nearly complete genome sequences was identified and designated as D/bovine/CHN/JY3001/2021. Importantly, sequence alignments and phylogenetic analyses revealed that this IDV strain is genetically close to the strains (>98% homology) in the D/Yama2019 lineage that has been found only in Japan, but distant from the previously reported Chinese IDV strains (similar to 95% similarity). These results demonstrate the emergence of D/Yama2019 lineage IDV in Chinese cattle herds, highlighting a need for future surveillance of D/Yama2019-like viruses toward better understanding both epidemiology and diversity of IDV in China.

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