An "aggressive" species of dengue-carrying mosquito has been found in Queensland, with concerns it could bring the disease to southern parts of the state.

Larvae of the Asian tiger mosquito, Aedes albopictus, was discovered in the tiny Cape York town of New Mapoon this week.

Health authorities say it has the ability to carry dengue, a blood-borne virus that can be fatal in some cases. The mosquito can also transmit yellow fever.

Queensland's Chief Health Officer Jeannette Young said more concerning was its ability to survive in cooler climates and the potential for it to establish itself in the state's south-east, including Brisbane.

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