The National Feral Pig Action Plan

Japanese Encephalitis Virus (JEV) updates

This page and our JEV factsheet will be continuously refreshed as we get more details to give you the most relevant, up-to-date information.

Japanese encephalitis virus (JEV) has recently been confirmed in domestic pigs and humans in eastern Australia. JEV is a mosquito-borne viral disease that can cause reproductive losses and encephalitis in susceptible species. It is a nationally notifiable disease in both humans and animals and has been declared a Communicable Disease Incident of National Significance by the Australian Government Department of Health.

As of 16 May 2022, 28 human cases have been confirmed in Australia (Queensland (2), NSW (12), South Australia (4) and Victoria (10)). There have also been 4 confirmed deaths (Victoria, SA, QLD and NSW).

JEV has been detected in 35 feral pigs in this outbreak in the NT. It is important to note that both feral and domestic pigs can amplify the virus which can then be transmitted by infected mosquitos to humans from pigs.

Anyone experiencing JEV symptoms should seek urgent medical attention.

If you see any feral pigs behaving abnormally or with symptoms of JEV, contact your local veterinarian or call the national Emergency Animal Disease Watch Hotline on 1800 675 888 to report it.