Cumulative cases since outbreak start — Australian CDC bulletin dated 2026-08-10
Official report date — in isolated zones, field onset typically precedes this by days to weeks.
The exact nature of this date (week of confirmation, transmission period, or bulletin publication date) is not specified by the source.
Australian Centre for Disease Control — Diphtheria epidemiological update (as at 2026-08-10): 513 confirmed cases, 1 death, around 19% hospitalised. Most cases in the Northern Territory (53.4%; n=274) and Western Australia (42.3%; n=217), with fewer in South Australia (n=17) and Queensland (n=5); 95.5% among Aboriginal and/or Torres Strait Islander people. Cases have been declining nationally since peaking between late May and early June, though trends vary by jurisdiction — 28 cases notified in the past fortnight vs 35 the fortnight before. Source: Australian CDC NNDSS report.
Case trend
First actions
- →Log in national surveillance system — continue routine monitoring
- →Compare with seasonal baseline for this region and disease
- →Include in weekly surveillance briefing — escalate if trend worsens (▲ cases or CFR)
Cite this page (Vancouver)
HealthWatch Global. Diphtheria outbreak — Australia [Internet]. 2026-08-10 [cited 2026 Aug 26]. Available from: https://healthwatch-global.com/en/outbreak/e856b352-747b-4db0-b0d1-c9e55f6c53aa. Data source: Australian CDC.
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