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Serological evidence of hepatitis E virus and influenza A virus infection in farmed wild boars in China

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  • Serological evidence of hepatitis E virus and influenza A virus infection in farmed wild boars in China

    Acta Trop. 2019 Feb 6. pii: S0001-706X(18)31657-7. doi: 10.1016/j.actatropica.2019.02.004. [Epub ahead of print]
    Serological evidence of hepatitis E virus and influenza A virus infection in farmed wild boars in China.

    Liang QL1, Nie LB1, Zou Y2, Hou JL2, Chen XQ3, Bai MJ2, Gao YH4, Hu GX5, Zhu XQ6.
    Author information

    Abstract

    Hepatitis E virus (HEV) and influenza A virus (IAV) are two important pathogens which can infect humans and various animals causing public health problems. In this study, the seroprevalence and risk factors associated with HEV and IAV infection in farmed wild boars were investigated in China. A total of 758 serum samples were collected from farmed wild boars between 2015 and 2016, and antibodies against HEV and IAV were examined by enzyme-linked immunosorbent assay (ELISA) using commercially available kits. The overall prevalence of anti-HEV antibodies was 24.54% (186/758, 95% CI 21.48-27.60) in farmed wild boars. There were statistically significant differences in the HEV seroprevalence in farmed wild boars of different ages (<22 days: 8.33%; 22-66 days: 18.89%; >66 days: 26.36%) (P < 0.05) and different genders (50.00% in male and 23.49% in female) (P <  0.01). However, there was no statistically significant difference in the HEV seroprevalence in farmed wild boars of different regions and different years. The overall IAV seroprevalence was 5.80% (44/758, 95% CI 4.14-7.46), and there was no statistically significant difference in the IAV seroprevalence in farmed wild boars of different ages and genders, collected from different regions and different years. Our results indicate that HEV and IAV infections in farmed wild boars may pose a potential risk for human infection. To our knowledge, this is the first report of HEV and IAV seroprevalence in farmed wild boars in China, which provides baseline data for further studies and for control of HEV and IAV infection in farmed wild boars.
    Copyright 2019. Published by Elsevier B.V.


    KEYWORDS:

    China; Farmed wild boars; Hepatitis E virus (HEV); Influenza A virus (IAV); Seroprevalence

    PMID: 30738024 DOI: 10.1016/j.actatropica.2019.02.004
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