Australia is currently experiencing its most severe diphtheria outbreak in decades, with nearly 220 confirmed cases reported nationwide. The outbreak is predominantly concentrated in the Northern Territory, Western Australia, South Australia, and Queensland. Health officials attribute this resurgence to a significant drop in childhood vaccination rates, which fell to a five-year low in 2025.
Impact on Indigenous Communities
Almost all reported cases involve Indigenous Australians, prompting health authorities to collaborate closely with Aboriginal community agencies to enhance immunisation coverage. The federal health minister, Mark Butler, has announced a government support package that includes additional vaccine supplies and a surge workforce to help manage the outbreak, which is placing considerable strain on hospital systems.
Potential First Fatality in Nearly a Decade
Health authorities are currently investigating a suspected diphtheria-related death. If confirmed, this would mark the first fatality from the disease in Australia in nearly ten years. The outbreak underscores the critical importance of maintaining high vaccination rates to prevent the resurgence of preventable diseases.
The government is urging all eligible individuals, particularly in affected regions, to ensure they are up to date with their diphtheria vaccinations. Efforts are underway to deploy mobile vaccination units and increase public awareness campaigns targeting at-risk communities.
