The likely first summer case of a potentially deadly mosquito-borne virus has been identified in regional Victoria.
Japanese encephalitis, a flavivirus related to dengue and yellow fever, was detected in a resident of the north of the state, the Department of Health announced this Tuesday.
The virus has also been detected by environmental surveillance in northern Victoria along the Murray River, and in mosquitoes and feral pigs in New South Wales.
The disease is transmitted by mosquitoes and most people do not get sick, but symptoms can include fever, vomiting and headaches.
In more severe cases, patients can suffer seizures, paralysis, permanent disability, or even death.
Victorian Health Office Acting Chief Christian McGrath issued the alert and warned those near the Murray River or adjacent regions to take extra precautions.
These include using repellent on exposed skin and wearing long, loose-fitting clothing when outside, and ensuring accommodation, including tents, is properly equipped with nets.
‘The risk of mosquito-borne diseases will remain high in the coming weeks. Taking steps to avoid mosquito bites is essential to protect against infection,” said Dr. McGrath.
Japanese encephalitis, a flavivirus linked to dengue and yellow fever, was detected in a northern Victoria resident on Tuesday and is a mosquito-borne disease (stock)
It comes after a public appeal was issued in Queensland last week after wet weather created ideal conditions for mosquito breeding, increasing the risk of Japanese encephalitis spreading from New South Wales.
More than 50 local government areas in New South Wales have been identified as being at “increased risk” of contracting the virus, and it was also detected in routine mosquito surveillance in the north-west Riverina region.
The risk of infection increases in the warmer months, November to March, due to greater numbers of mosquitoes.
Children under five years old and older people infected with the virus are at higher risk of developing more serious illnesses, such as encephalitis.
Mosquito testing is being carried out during the summer period to help identify high risk areas.