Authorities have warned the public and health professionals to be on alert for Ross River virus.

Cases of the mosquito-borne disease have been detected across Victoria, including around Mildura in the state’s north west and Moira Shire in the north, reports ABC NEWS.

After heavy rains last year and flooding in some areas, authorities had warned there was a heightened risk of mosquito-borne diseases this summer.

In 2016, there were 314 diagnosed cases of the virus in Victoria.

Victoria’s chief health officer Professor Charles Guest said the best protection against the virus was to avoid mosquito bites by wearing repellent, loose-fitting clothing and ensuring accommodation was mosquito proof.

“We are seeing an increase [in diagnoses] and for that reason we are warning people about mosquito bites,” he said.

“We’ve also seen more mosquitos, this is not surprising given all the rain we had during the spring – so it’s an expected rise in the number of mosquitos and an expected rise in the number of cases of Ross River virus disease.”

Professor Guest said Ross River was “unpleasant” but rarely dangerous and often went undiagnosed.

“Every year we have notifications of several hundred cases of Ross River virus disease, bearing in mind that many cases do not come to clinical attention,” he said.

“This is a disease where symptoms at the start can be vague, unless the rash and the typical symptoms in the joints of the hands and feet and other places develop, it’s quite possible for the diagnosis to be missed.”

However, he said with the increase of mosquitos, authorities were also alert for the reappearance of the rare, and more serious, mosquito-borne Murray Valley Encephalitis (MVE) virus.

“That’s the other reason we take some trouble to warn people about mosquito bite, we hope for the best and we plan for something worse than that,” he said.

“I think it’s just important for people to understand that a mosquito bite is usually just a nuisance but sometimes can cause disease and very occasionally, rarely, may cause a disease that is disastrous.”

Tips to beat bites
•Wear long, loose-fitting clothing
•Use effective mosquito repellents containing DEET or picaridin
•Control mosquitos with sprays or vaporising devices for inside use, including caravans
•Install fly screens
•Make sure mosquitos can’t breed by removing stagnant water every week
•Empty children’s wading pools when not being used
•Limit outdoor activity at dusk and dawn

SYMPTOMS of Ross River Virus via Better Health

Ross River virus (RRV) disease can cause joint inflammation and pain, fatigue and muscle aches. Many infected people also develop a rash of variable appearance. Everyone recovers, although some people have intermittent symptoms for a year or more.

Ross River virus disease is caused by an alphavirus, which is spread by mosquitoes. Approximately 30 per cent of people infected with the virus will develop symptoms three to 11 days after being infected with others developing symptoms up to 21 days after the exposure.

Share your comments below.

  • Too many mosquito-related viruses these days!


  • Another reason why I hate mozzies! Unfortunately they love me ????


  • So very scarey when these viruses become prevalent. I’ve just been on holiday in Victoria. Happy to be back home in Tassie now, safe and sound


  • A very nasty virus to have so be aware!


  • Mosquitoes and the diseases that come with them are truly scary.


  • That the symptoms at the start can be so vague makes it hard to identify ! Glad to read that everyone recovers from this virus !!


  • Mozzies are so tiny and easy to miss. To think you might not know you have been bitten and the fact that it can take up to 21 days for the symptoms to start showing is scary indeed.


  • oh jeepers!


  • DEET is known to be a dangerous chemical. There was talk of banning it. Mozzies also become immune to it after awhile. Ross River Virus is a big problem in river areas and tropical sones too.
    It causes long term health problems


  • Better be careful indeed. A bite can create so many problems.


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