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Outbreak Updates
26 August 2026
Australia

Diphtheria in Australia

As of 26 August 2026, a total of 539 confirmed diphtheria cases have now been reported across Australia during 2026. The majority of cases have been reported in the Northern Territory (289 cases) and Western Australia (227 cases). Please see our Topics in Brief article for further details on diphtheria.

Source: State Diphtheria in brief
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