Prevalence of severe fever with thrombocytopenia syndrome virus in animals in Henan Province, China,Infectious Diseases of Poverty

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Prevalence of severe fever with thrombocytopenia syndrome virus in animals in Henan Province, China
Infectious Diseases of Poverty ( IF 8.1 ) Pub Date : 2019-06-24 , DOI: 10.1186/s40249-019-0569-x
Xue-Yong Huang , Yan-Hua Du , Hai-Feng Wang , Ai-Guo You , Yi Li , Jia Su , Yi-Fei Nie , Hong-Xia Ma , Bian-Li Xu

Severe fever with thrombocytopenia syndrome (SFTS) is an emerging infectious disease caused by severe fever with thrombocytopenia syndrome virus (SFTSV). SFTSV has been found in humans, ticks and animals, and SFTS has high mortality and increasing prevalence in East Asia. In the study, the samples (heart, liver, lung, kidney, spleen, brain tissue and serum) were collected from 374 domestic animals and 241 wild animals in Pingqiao District and Xinxian County of Xinyang in Henan Province, China. 275 (44.72%, 275/615) animals were positive for anti-SFTSV antibodies, the anti-SFTSV antibodies positive ratios of domestic and wild animals were 43.58% (163/374) and 46.47% (112/241), respectively. There was no significant difference in domestic and wild animals, but significant differences were detected among different species of animals (χ2 = 112.59, P < 0.0001). Among 615 animals, 105 (17.07%, 105/615) animals were positive for SFTSV RNA, and only one SFTSV strain was isolated from heart tissue of a yellow weasel. The phylogenetic analysis shows that the sequence from animals belonged to the same group with viral sequences obtained from humans. The animals maybe play a reservoir host in maintaining the life cycle of SFTSV in nature.

更新日期：2019-06-24

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