West Nile virus in Australia


West Nile Virus (WNV) is a mosquito borne virus belonging to the genus Flavivirus. A strain of WNV, Kunjin virus (WNVKUN) is endemic in parts of Australia and has been present for many years.

WNV is found across all continents except Antarctica. In Australia, WNVKUN has been infrequently associated with disease in humans. In 2011, there was a large outbreak of neurological disease in horses in South East Australia caused by a variant of the Australian strain WNVKUN.

West Nile virus infection has been confirmed in a horse from the Forbes district in February 2017.

Topics covered by this Primefact include:

  • Signs of West Nile virus
  • how to notify West Nile infection in animals
  • how, when and where the virus spreads
  • diagnosis of West Nile virus in horses
  • treatment and prevention of West Nile infection in animals.


Primefact 1522 First Edition

Published: Feb 2017