1887

Abstract

Bufavirus is a single-stranded DNA virus belonging to the genus Protoparvovirus. This study reports the identification and characterization of a porcine bufavirus by a metagenomic approach, and a limited epidemiology investigation of bufavirus in six swine farms. A comparative genome analysis showed a similarity of 93 % to a Hungarian porcine bufavirus. Bayesian and maximum-likelihood analyses of genome sequences showed a close relationship of porcine bufaviruses to human and monkey bufaviruses. Molecular dating of the most recent common ancestors supported a recent introduction of bufaviruses into human and pig populations, respectively. A real-time PCR method was developed to screen 60 faecal samples for the porcine bufavirus DNA, and eight positive samples were found in two neighbouring farms, suggesting a relatively low prevalence (13.3 %). No direct transmission of porcine bufaviruses between two neighbouring farms was found, suggesting that bufaviruses may have spread widely in different geographical regions.

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2016-07-01
2019-10-15
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