29 Feb 2024 | 11:32 AM UTC
Australia: Elevated Ross River virus activity reported in Queensland through February
Elevated Ross River virus activity reported in Queensland, Australia through February. Take precautions against mosquito bites.
Health authorities have reported elevated Ross River virus activity in multiple areas in Queensland State, Australia with a total of 361 cases reported Jan. 1-Feb. 25. This is compared to the 214 cases reported in Queensland over a similar period in 2023. The Sunshine Coast (59 cases) is most affected, followed by Metro North (57 cases), Wide Bay (45 cases), Metro South (43 cases), Central Queensland (36 cases), Mackay (31 cases), and Townsville (31 cases). Local health authorities urge the public to take the necessary mosquito prevention measures, especially during outdoor activities, and to seek medical attention if experiencing any disease symptoms. This report represents the most complete data available as of Feb. 29.
As weather permits, wear long-sleeved shirts, pants, and socks, or use insect protection containing DEET, picaridin, or another approved repellent. Remove standing water to reduce the number of biting mosquitoes. Seek medical attention if symptoms develop within 21 days of being in affected areas.
Ross River virus is endemic in Australia, with disease activity typically peaking January-April, with the risk of infection highest after heavy rainfall. Australian health officials reported 1,701 Ross River virus cases nationwide in 2023, 2,904 cases in 2022, 3,088 cases in 2021, and 6,360 cases in 2020.
Ross River virus is transmitted through the bite of an infected mosquito. Symptoms usually appear approximately 7-9 days after infection but this can range from 3-21 days and can include fever, rash, and joint pain (arthritis). Arthritis primarily affects the ankles, fingers, knees, and wrists; however, any joint may be affected. Fatigue and arthritis may persist for several months to a year, but the disease does not cause any permanent joint damage.
