Ross River virus risk from mosquitos around Georges River

6 January 2017

South Eastern Sydney Public Health Unit is advising GPs, particularly those in the Alfords Point, Illawong and Lugarno areas, that numbers of the saltmarsh mosquito, Aedes vigilax, trapped in the Alfords Point-Illawong-Lugarno area have reached high levels. Ross River fever has been isolated from the mosquitos on two occasions in December. The Public Health Unit has issued a media release warning local residents and visitors to the area to protect themselves from mosquito bites due to an increased risk of Ross River virus infection if bitten. A possible case is currently being investigated in a Lugarno resident.

The infection may present with flu-like symptoms with or without arthralgia or rash, after an incubation period of 7-10 days. If you see a suspected case, request RRV and Barmah Forest virus IgM and IgG serology; a second sample taken two weeks later may be necessary to confirm diagnosis.

Please contact SESLHD Public Health Unit on 9382 8333 for advice or to discuss a case.

See the latest statistics by clicking on 'Arbovirus Surveillance Report' from the SESLHD webpage.