Monash Researchers Analysed Dengue Fever Risks

A new study explored how changing climate conditions may alter the spread of dengue and malaria across Australia.

Updated on Oct. 13, 2026 in Diseases — General

A close-up of a sterile mosquito research trap and laboratory glassware on a clean metal workbench in a medical laboratory. — Monash University researchers released a study examining how rising temperatures and changing climate conditions may alter the reach of dengue fever across Australia. AI Illustration. Upload story photo >

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Monash University researchers released a study examining the impact of rising temperatures on the transmission of dengue fever. Findings highlight that while most Australian cases are imported, local outbreaks continue to occur in northern regions.

Why it matters

Rising global temperatures could expand the geographic reach of dengue fever into new parts of Australia. Understanding these climate drivers is essential for public health planning as transmission risks evolve.

Between 2012 and 2022, there were 12,568 imported dengue cases recorded in Australia. National notifications totalled 2,381 in 2024 and 1,863 in 2025.

The players

Monash University

This public research university based in Melbourne conducted the study on climate change and dengue transmission.

The details

The study suggests that while northern Queensland's current wet tropics could see reduced risk by 2050 under high-emissions scenarios, other areas may face increased threats. Authorities currently use Wolbachia bacteria in Cairns and Townsville to reduce the ability of mosquitoes to transmit viruses, while the Qdenga vaccine remains available for those aged four and over.

Over 94% of Australian dengue cases were acquired overseas between 2012 and 2022.
Townsville recorded 16 locally acquired dengue cases during the 2024-25 wet season.
Cairns confirmed its first locally acquired dengue case since 2018 in May 2025.
The Monash University study was released in October 2026.

The Big Picture

This research follows a pattern set by the Wolbachia mosquito control programme in Queensland, which aims to suppress virus transmission through biological intervention.

Australians travelling to areas where dengue is prevalent should be aware that the vast majority of local cases are acquired overseas. Those seeking preventative measures can consult a doctor about the two-dose Qdenga vaccine, which is available on private prescription.

The takeaway

Public health efforts in Australia continue to rely on a combination of biological mosquito control and vaccination to mitigate local outbreaks. Residents should remain informed about regional transmission risks as climate patterns shift over the coming decades.