South Australians are reminded to protect themselves and their loved ones against mosquito-borne
viruses during the 2025/2026 mosquito season.

This year, there have been early detections of Ross River virus in trapped mosquitoes in the Adelaide
Plains at Thompson Beach and Parham in September and October, and Middle Beach Caravan Park in
November. As the mosquito season has started, this is a timely reminder for all South Australians to take
care and protect themselves and their families across the state.

Mosquito-borne viruses found in South Australia also include Barmah Forest virus, Murray Valley
encephalitis virus and West Nile virus (Kunjin strain). There is no vaccination or cure for these diseases,
which is why the best way to avoid getting sick is to stop mosquitoes from biting you in the first place.

Japanese encephalitis virus is also found in South Australia but is vaccine preventable, and eligible
persons are encouraged to get vaccinated.

These detections come as a new targeted statewide campaign, Mozzies Suck, launches to raise
awareness of various mosquito-borne viruses that circulate this time of year across South Australia.

Running from 8 December 2025 through to 31 January 2026, the campaign will coincide with the
summer school holidays and warmer months when South Australians are likely to be outside enjoying
nature.

The campaign will run across print, radio, external billboard advertising and on social media.
Steps people can take to protect themselves include:

• Wear long, loose-fitting and light-coloured clothing, covering as much of the body as you can.
• Use a mosquito repellent containing DEET, Picaridin or Oil of Lemon Eucalyptus (PMD)
• Apply repellent evenly to all areas of exposed skin, like you would with sunscreen
• Reapply regularly, as per the label instructions
• Stop mosquitoes coming indoors with mesh over doors, windows and vents
• Remove stagnant water from around your home to prevent mosquito breeding – including fresh
  or salt water in puddles, bird baths, paddling pools, roof gutters, pots and containers
• If eligible, get vaccinated against Japanese encephalitis virus,
  More information about protecting yourself this season can be found on the SA Health website.
  
• Dr Chris Lease, Executive Director, Health Protection and Regulation said, “With a refreshed campaign launching this season, we want to ensure all South Australians are protecting themselves against the spread of mosquito-borne viruses.
  Mosquito-borne viruses can cause debilitating disease and death and the best protection from these serious diseases is to not get bitten in the first place.”
• 
  “All South Australians should remain vigilant, wear long-sleeved and light-coloured clothes and apply an
  insect repellent containing DEET, picaridin or oil of lemon eucalyptus if you are outside as this will help
  reduce your exposure to mosquito bites.”