February 17, 2025
The DPI issued a Biosecurity Alert on Monday after Japanese encephalitis virus (JEV) was detected at two piggeries in southern Queensland.
These are the first detections of JEV in animals in Queensland since July 2022.
JEV is a zoonotic disease spread by mosquitoes that can cause reproductive issues in pigs and neurological signs in horses, such as lack of co-ordination, difficulty swallowing and impaired vision.
The most common clinical signs in pigs are abortions, mummified or malformed foetuses and stillborn or weak piglets.
A DPI spokesperson said JEV was considered “established” in mainland Australia, so the detections were not unexpected.
Biosecurity Queensland has urged all pig keepers to take preventative action to prevent the spread of JEV, monitor susceptible animals for any signs of disease and report any suspected cases to their local veterinarian.
In rare cases, JEV can cause disease in humans.
Reducing exposure to infected mosquitoes is the key to avoiding JEV.
People working with pigs, including those who may have a small herd or pet, should take steps to control mosquitoes, as well as continue to use effective biosecurity measures.
People who work or live near pigs, both domesticated and feral, have been urged to get vaccinated against JEV.
For more information about JEV and vaccine eligibility, visit the Queensland Health website
Vaccinations are free for residents in the South Burnett Regional Council area.
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