Repeated Isolation of Virulent Newcastle Disease Viruses in Poultry and Captive Non-Poultry Avian Species in Pakistan From 2011 to 2016

Prev Vet Med. 2017 Jul 1;142:1-6. doi: 10.1016/j.prevetmed.2017.04.010. Epub 2017 Apr 29.

Abstract

Virulent viruses of the panzootic Avian avulavirus 1 (AAvV-1) of sub-genotype VIIi were repeatedly isolated (2011-2016) from commercial chickens and from multiple non-poultry avian species in Pakistan. These findings provide evidence for the existence of epidemiological links between Newcastle disease outbreaks in commercial poultry and infections with virulent AAvV-1 strains in other avian species kept in proximity to poultry. Our results suggest that the endemicity of Newcastle disease in Pakistan involves multiple hosts and environments.

Keywords: APMV-1; Avian avulavirus 1, AAvV-1; Captive birds; Endemicity; Epidemiology; NDV; Newcastle disease virus; Pakistan.

MeSH terms

  • Animals
  • Animals, Wild / virology*
  • Chickens
  • Newcastle Disease / epidemiology*
  • Newcastle Disease / transmission
  • Newcastle Disease / virology
  • Newcastle disease virus / classification
  • Newcastle disease virus / isolation & purification*
  • Newcastle disease virus / pathogenicity*
  • Pakistan / epidemiology
  • Poultry
  • Poultry Diseases