News

Alert as new mosquito-borne virus detected

Jan 27, 2023

There have been more detections of Murray Valley encephalitis in mosquitoes trapped at multiple locations across the state’s north. Photo by Photographer: James Gathany

More cases of a dangerous mosquito-borne disease have been detected in mosquitoes in northern Victoria.

Hold tight - we’re checking permissions before loading more content

The state’s deputy chief health officer Associate Professor Deborah Friedman issued a warning on January 25 about the Murray Valley encephalitis virus, saying there have been more detections in mosquitoes trapped at multiple locations across the state’s north.

She said the results meant the virus was circulating widely in the mosquito population and there was a “significant risk” to people in the affected areas — particularly in Mildura and northern Victoria’s inland river regions.

“The risk area for (the) virus is similar to that for Japanese encephalitis virus and the risk of human cases in the coming weeks is very high,” Assoc Prof Friedman said.

“This risk is expected to continue while mosquito numbers remain elevated.”

The virus is a rare but potentially serious disease that can cause permanent neurological disease or death, but is generally mild or not severe enough to cause symptoms.

Assoc Prof Friedman urged residents and visitors of Victoria’s north to reduce their risk of mosquito bites by covering up, wearing repellent and avoiding being outdoors at dusk and dawn.