Seroprevalence and risk factors associated with Pseudorabies virus infection in Tibetan pigs in Tibet
Qingxia Wu | Hui Zhang | Hailong Dong | Khalid Mehmood | Zhenyu Chang | Kun Li | Suozhu Liu | Mujeeb Ur Rehman | Fazul Nabi | Muhammad Tariq Javed | Hongyun Zhu | Jiakui Li
Abstract Background Pseudorabies (PR) is an important emerging infectious disease that is characterized by fever, extreme itching and encephalomyelitis. However, it is still unclear whether Tibetan pigs are exposed to Pseudorabies virus (PRV) or not. The present study was conducted to investigate the seroprevalence of PRV infection in Tibetan pigs in Nyingchi area of Tibet through enzyme-linked immunosorbent assay (ELISA). A total of 368 serum samples from Tibetan pigs were collected during 2015. Results Results showed that 58 (15.76%) samples were found positive for PRV antibodies with further distribution of 18.23%, 13.42% and 6.25% from Nyingchi, Mainling and Gongbo’gyamda areas on the Tibetan plateau, respectively; along with 12.10%, 17.71% and 17.57% prevalence of PRV in juveniles, sub-adults and adults, respectively. The prevalence of PRV infection between male (14.61%) and female (16.84%) showed non-significant difference (P > 0.05). The risk factors of infection were found to be associated with feed type, age and altitude. Conclusions The present study depicts a serious concern with a new emerging infectious disease in Tibetan pigs in Tibet, China.
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