A PLAGUE of disease-ridden mosquitoes has inhabited areas along the Georges River and residents and recreational visitors have been urged to take extra precautions.
Acting public-health director for the South Western Sydney Local Health District, Graham Burgess, said the latest trapping around the Georges River showed a high number of the saltmarsh mosquito aedes vigilax following predicted high tides.
"Ross River virus and Barmah Forest virus are spread by mosquitoes that feed on infected animals," he said. "Symptoms of infection in humans may include tiredness, rash, fever and sore and swollen joints.
"While these symptoms usually subside after several days, some people may experience these symptoms for weeks or even months."
Mr Burgess said there was no specific treatment for these infections.
"The best way to avoid infection is to avoid being bitten," he said.
Details on Ross River and Barmah Forest viruses: health.nsw.gov.au /factsheets/infectious/rossriver.html.