{"title":"动物流行性出血病病毒血清型7分离物的致病性对比：IFNAR（-/-）小鼠的高毒力与绵羊在EHDV-7流行病学中的可忽略作用","authors":"Junyong Guan, Yinglin Qi, Yingran Huang, Ran Shao, Dong Zhou, Cankun Xi, Xin Yin","doi":"10.1007/s00705-025-06377-4","DOIUrl":null,"url":null,"abstract":"<div><p>Epizootic hemorrhagic disease virus (EHDV) causes severe disease in ruminants. We assessed the pathogenicity of the Chinese EHDV-7 isolate YN09 in mice lacking the type I interferon receptor and in sheep. In mice, YN09 infection resulted in 100% mortality, with histopathological lesions, viral replication, and immunoreactivity in multiple organs. In sheep, infection with this virus resulted in transient RNAemia and low-level production of neutralizing antibodies, but no clinical signs or viremia were observed. These findings contrast YN09’s high murine virulence with sheep resistance, suggesting that sheep play a negligible role in EHDV-7 transmission in China. Further studies of other natural hosts are needed in order to understand the ecology of this EHDV-7 strain. </p></div>","PeriodicalId":8359,"journal":{"name":"Archives of Virology","volume":"170 10","pages":""},"PeriodicalIF":2.5000,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Contrasting pathogenicity of an epizootic hemorrhagic disease virus serotype 7 isolate: high virulence in IFNAR(-/-) mice versus a negligible role of sheep in EHDV-7 epidemiology\",\"authors\":\"Junyong Guan, Yinglin Qi, Yingran Huang, Ran Shao, Dong Zhou, Cankun Xi, Xin Yin\",\"doi\":\"10.1007/s00705-025-06377-4\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Epizootic hemorrhagic disease virus (EHDV) causes severe disease in ruminants. We assessed the pathogenicity of the Chinese EHDV-7 isolate YN09 in mice lacking the type I interferon receptor and in sheep. In mice, YN09 infection resulted in 100% mortality, with histopathological lesions, viral replication, and immunoreactivity in multiple organs. In sheep, infection with this virus resulted in transient RNAemia and low-level production of neutralizing antibodies, but no clinical signs or viremia were observed. These findings contrast YN09’s high murine virulence with sheep resistance, suggesting that sheep play a negligible role in EHDV-7 transmission in China. Further studies of other natural hosts are needed in order to understand the ecology of this EHDV-7 strain. </p></div>\",\"PeriodicalId\":8359,\"journal\":{\"name\":\"Archives of Virology\",\"volume\":\"170 10\",\"pages\":\"\"},\"PeriodicalIF\":2.5000,\"publicationDate\":\"2025-09-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Archives of Virology\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s00705-025-06377-4\",\"RegionNum\":4,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"VIROLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Archives of Virology","FirstCategoryId":"3","ListUrlMain":"https://link.springer.com/article/10.1007/s00705-025-06377-4","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"VIROLOGY","Score":null,"Total":0}
Contrasting pathogenicity of an epizootic hemorrhagic disease virus serotype 7 isolate: high virulence in IFNAR(-/-) mice versus a negligible role of sheep in EHDV-7 epidemiology
Epizootic hemorrhagic disease virus (EHDV) causes severe disease in ruminants. We assessed the pathogenicity of the Chinese EHDV-7 isolate YN09 in mice lacking the type I interferon receptor and in sheep. In mice, YN09 infection resulted in 100% mortality, with histopathological lesions, viral replication, and immunoreactivity in multiple organs. In sheep, infection with this virus resulted in transient RNAemia and low-level production of neutralizing antibodies, but no clinical signs or viremia were observed. These findings contrast YN09’s high murine virulence with sheep resistance, suggesting that sheep play a negligible role in EHDV-7 transmission in China. Further studies of other natural hosts are needed in order to understand the ecology of this EHDV-7 strain.
期刊介绍：
Archives of Virology publishes original contributions from all branches of research on viruses, virus-like agents, and virus infections of humans, animals, plants, insects, and bacteria. Coverage spans a broad spectrum of topics, from descriptions of newly discovered viruses, to studies of virus structure, composition, and genetics, to studies of virus interactions with host cells, organisms and populations. Studies employ molecular biologic, molecular genetics, and current immunologic and epidemiologic approaches. Contents include studies on the molecular pathogenesis, pathophysiology, and genetics of virus infections in individual hosts, and studies on the molecular epidemiology of virus infections in populations. Also included are studies involving applied research such as diagnostic technology development, monoclonal antibody panel development, vaccine development, and antiviral drug development.Archives of Virology wishes to publish obituaries of recently deceased well-known virologists and leading figures in virology.
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