Japanese Encephalitis

Racing Victoria (RV) Chief Medical Officer, Dr Ben Barresi, has provided a precautionary update for industry participants and officials regarding the mosquito-borne virus Japanese Encephalitis.

On 7 May 2026, the Victorian Department of Health amended guidelines for the prevention of Japanese Encephalitis and extended its free vaccination program until 31 July 2026 for certain local government areas (LGAs) throughout regional Victoria.

Dr Barresi advises that, whilst less than 1% of patients who contract the Japanese Encephalitis virus infection develop symptoms and the clinical disease, there is a high mortality rate among this very small percentage that do.

As there is no specific treatment available for the illness, vaccination provides a precautionary measure for those wishing to reduce their level of risk.

The Victorian State Government has published new vaccination information on the eligible LGAs across country Victoria. Click here to view the eligible LGAs.

It is worth noting that vaccination eligibility is not just based on whether a person lives/resides in the designated area or not, it is based upon whether the person lives/resides, works, volunteers, travels to, or engages in outdoor activity which is considered a risk of exposure to mosquitoes.   This includes, but is not limited to, work and recreational outdoor activities such hiking, camping, fishing, boating, hunting, camping and caravaning.

It is also important to note that the Japanese Encephalitis vaccination is voluntary and Dr Barresi states that you should consider your own individual circumstances and medical history to determine if the vaccination is appropriate for you.

Accordingly, this Industry Notice is issued by RV to industry participants and officials as a precautionary measure, and you are encouraged to speak further with your healthcare provider should you wish to know more about the risks and your options.

Given this is a free vaccination program, Dr Barresi noted that early engagement with healthcare providers (GP, Pharmacist, Community Health Service) for those wishing to be vaccinated is an appropriate consideration, as the current supply may not be sufficient to meet demand.

For further information on Japanese Encephalitis, click here to view the Victorian Department of Health website, otherwise please consult your healthcare provider.