Overview

• Japanese encephalitis virus (JEV), a potentially deadly mosquito-borne disease, has been identified in Brisbane mosquitoes for the first time, raising concerns about its spread in Queensland.
• Recent flooding caused by ex-Tropical Cyclone Alfred has created ideal conditions for mosquito breeding, increasing the risk of JEV transmission across affected regions.
• While most JEV cases are mild or asymptomatic, severe infections can cause brain inflammation, seizures, permanent disability, or death in rare cases.
• Health authorities recommend preventive measures such as wearing protective clothing, using insect repellents, removing standing water, and staying indoors during peak mosquito activity times.
• Free vaccinations are available for high-risk groups, including piggery workers and residents near pig populations, with over 18,000 Queenslanders already vaccinated since 2022.