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Identification of a recombinant equine coronavirus in donkey, China

文献类型： 外文期刊

作者： Qi, Peng-Fei 1 ; Gao, Xing-Yi 3 ; Ji, Jing-Kai 4 ; Zhang, Yan 5 ; Yang, Shao-Hua 1 ; Cheng, Kai-Hui 1 ; Cui, Ning 1 ; Zhu, Man-Ling 1 ; Hu, Tao 6 ; Dong, Xuan 7 ; Yan, Bin 3 ; Wang, Chang-Fa 8 ; Yang, Hong-Jun 1 ; Shi, Wei-Feng 6 ; Zhang, Wei 1 ;

作者机构： 1.Shandong Acad Agr Sci, Inst Anim Sci & Vet Med, Key Lab Livestock & Poultry Multiom MARA, Jinan, Peoples R China

2.Shandong Acad Agr Sci, Inst Anim Sci & Vet Med, Shandong Key Lab Anim Dis Control & Breeding, Jinan, Peoples R China

3.Shandong Univ Tradit Chinese Med, Sch Med, Jinan, Peoples R China

4.Shandong First Med Univ & Shandong Acad Med Sci, Sch Life Sci, Tai An, Peoples R China

5.Shandong Acad Agr Sci, Inst Crop Germplasm Resources, Jinan, Peoples R China

6.Shandong First Med Univ & Shandong Acad Med Sci, Sch Publ Hlth, Tai An, Peoples R China

7.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao, Peoples R China

8.Liaocheng Univ, Liaocheng Res Inst Donkey High Efficiency Breedin, Liaocheng, Shandong, Peoples R China

关键词： Equine coronavirus; recombination; donkey; bioinformatics analyses; China

期刊名称：EMERGING MICROBES & INFECTIONS （ 影响因子：7.163； 五年影响因子：7.329 ）

ISSN：

年卷期： 2022 年 11 卷 1 期

页码：

收录情况： SCI

摘要： Equine coronavirus (ECoV) was first identified in the USA and has been previously described in several countries. In order to test the presence of ECoV in China, we collected 51 small intestinal samples from donkey foals with diarrhoea from a donkey farm in Shandong Province, China between August 2020 and April 2021. Two samples tested positive for ECoV and full-length genome sequences were successfully obtained using next-generation sequencing, one of which was further confirmed by Sanger sequencing. The two strains shared 100% sequence identity at the scale of whole genome. Bioinformatics analyses further showed that the two Chinese strains represent a novel genetic variant of ECoV and shared the highest sequence identity of 97.05% with the first identified ECoV strain - NC99. In addition, it may be a recombinant, with the recombination region around the NS2 gene. To our knowledge, this is the first documented report of ECoV in China, highlighting its risk to horse/donkey breeding. In addition, its potential risk to public health also warrants further investigation.

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