Serological evidence of type 2 (North American genotype) porcine reproductive and respiratory syndrome virus in Nepal

Trop Anim Health Prod. 2016 Mar;48(3):663-6. doi: 10.1007/s11250-015-0986-1. Epub 2015 Dec 28.

Abstract

Porcine reproductive and respiratory syndrome virus (PRRSV) has spread throughout Asia, causing significant losses to commercial farmers and smallholders. However, little is known about PRRS in Nepal, a South Asian country with a gradually increasing pig industry. In 2011, a pilot project was initiated to identify the status of PRRSV in pigs of the Kathmandu Valley of Nepal. Out of 98 serum samples, 31 (32 %; 95 % CI 23-42 %) were found positive by ELISA. All positive samples belonged to the type 2 (North American) genotype. Molecular evaluation by real-time PCR however did not yield positive results. At the herd level, seropositivity was associated with a history of abortion and premature birth. Veterinarians, farmers and government should be aware of this threat to the Nepalese pig industry and initiate an appropriate response.

Keywords: Diagnosis; Nepal; PRRS; Pigs; Risk factors.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Abortion, Veterinary / epidemiology
  • Animals
  • Antibodies, Viral / blood
  • Enzyme-Linked Immunosorbent Assay / veterinary
  • Female
  • Nepal / epidemiology
  • Porcine Reproductive and Respiratory Syndrome / blood
  • Porcine Reproductive and Respiratory Syndrome / epidemiology*
  • Porcine Reproductive and Respiratory Syndrome / virology
  • Porcine respiratory and reproductive syndrome virus / genetics
  • Porcine respiratory and reproductive syndrome virus / immunology
  • Porcine respiratory and reproductive syndrome virus / isolation & purification*
  • Pregnancy
  • Prevalence
  • Real-Time Polymerase Chain Reaction / veterinary
  • Swine

Substances

  • Antibodies, Viral