Saturday,
22 February 2025
Japanese encephalitis virus detected in Goulburn Valley pig herd

AGRICULTURE Victoria has confirmed Japanese encephalitis (JE) virus has been detected in a Goulburn Valley pig herd.

JE virus is considered established in mainland Australia and therefore there will be no quarantine or movement restrictions put in place.

Deputy Chief Veterinary Officer Sally Salmon stressed that the detection, which is the first in a pig since April 2022, is not unexpected.

"We are actively monitoring the situation and continue to investigate and test pigs and other livestock that exhibit clinical signs consistent with JE virus infection," she said.

"You can help your pigs avoid infection by reducing nearby mosquito habitats and limiting their exposure to mosquitoes."

Japanese encephalitis (JE) is a mosquito-borne viral disease that can cause reproductive losses and encephalitis in susceptible animal species.

It is caused by the JE virus which is a member of the Flavivirus genus.

JE is spread by mosquitoes in a complex cycle that can involve birds, pigs and spillover hosts like horses, humans and various other animals.

This transmission cycle means it is not possible to eradicate JE in Victoria.

The Department of Health confirmed a human case of JE in a resident of northern Victoria in January.

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There is no specific treatment available for Japanese encephalitis.

The best prevention is to protect against mosquito bites.

There are simple steps you can take to protect against mosquito bites that include:

* Wear long, loose, light-colored clothing.

* Apply insect repellent containing diethyl-meta-toluamide (DEET) or picaridin to exposed skin, over sunscreen.

* Maintain gardens and shrubbery to reduce mosquito harboring areas.

* Remove or empty containers that may hold water, as they serve as mosquito breeding grounds.

The JE virus vaccine is available free of charge for specific groups at higher risk of exposure to the virus, including eligible people in 24 high-risk local government areas in northern Victoria, and for those at occupational risk across Victoria.

This includes people who attend piggeries and abattoirs and eligible people in high-risk local government areas in Victoria.

JE remains a notifiable disease in Victoria.

If you suspect an animal is showing signs of Japanese encephalitis, you must report it within 12 hours either to your local veterinarian, via the 24-hour Emergency Animal Disease Hotline on 1800 675 888, via the Notify Now app or to Agriculture Victoria animal health staff.