Journal
TRANSBOUNDARY AND EMERGING DISEASES
Volume 65, Issue 4, Pages 1087-1093Publisher
WILEY
DOI: 10.1111/tbed.12854
Keywords
APPV; genome detection; Pestivirus; reservoir host; serology; wild boar
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Funding
- KNOW Scientific Consortium, Healthy Animal-Safe Food, Polish Ministry of Science and Higher Education [05-1/KNOW2/2015]
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The recently identified atypical porcine pestivirus (APPV) was demonstrated to be the causative agent of the neurological disorder congenital tremor in newborn piglets. Despite its relevance and wide distribution in domestic pigs, so far nothing is known about the situation in wild boar, representing an important wild animal reservoir for the related classical swine fever virus. In this study, 456 wild boar serum samples obtained from northern Germany were investigated for the presence of APPV genomes and virus-specific antibodies. Results of real-time RT-PCR analyses revealed a genome detection rate of 19%. Subsequent genetic characterization of APPV (n=12) from different hunting areas demonstrated close genetic relationship and, with exception of APPV from one location, displayed less than 3.3% differences in the analysed partial NS3 encoding region. Furthermore, indirect E-rns ELISA revealed an antibody detection rate of approx. 52%, being in line with the high number of viremic wild boar. Analysis of fifteen wild boar samples from the Republic of Serbia by E-rns antibody ELISA provided evidence that APPV is also abundant in wild boar populations outside Germany. High number of genome and seropositive animals suggest that wild boar may serve as an important virus reservoir for APPV.
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