Diphtheria in Australia – Epidemiological update - 27 April 2026
🔹A total of 117 confirmed cases of diphtheria have been notified in Australia in 2026.
🔹In the past fortnight, 37 cases have been notified, with diagnosis dates ranging from 11 March to 21 April 2026.
🔹74 cases in the Northern Territory
🔹39 cases in Western Australia
🔹2 cases in Queensland
🔹2 cases in South Australia