An emerging equine parvovirus circulates in thoroughbred horses in north‐Xinjiang, China, 2018
2019
In 2015, a novel equine parvovirus, equine parvovirus-cerebrospinal fluid (EqPV-CSF), was identified from cerebrospinal fluid of a horse with neurological signs and lymphocytosis in USA. In our study, an EqPV-CSF-like virus was detected from 15 serum samples of 65 imported thoroughbred horses during custom quarantine in north Xinjiang province, China. Further field investigation in several major horse-producing areas in Xinjiang using specific PCR showed that this virus was detected mainly in thoroughbred horses (39/154 positive) previously imported, not in local breeds (0/127 positive). Phylogenetic analysis based on NS1 gene showed the virus was grouped together with EqPV-CSF in genus Copiparvovirus. The study presents valuable information showing that EqPV-CSF-like virus was likely exotic and introduced into Xinjiang through international trade of horses.
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