Cumulative cases since outbreak start — PAHO bulletin dated 2026-06-11
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.
PAHO Epidemiological Alert: Diphtheria in the Americas Region - 11 June 2026. Summary of the situation in the Americas Region In 2026, between epidemiological week (EW) 1 and EW 21, 163 confirmed cases of diphtheria were reported, including five deaths in the Americas Region, reported between three countries: Brazil (n= 2 cases), Haiti (n= 159 cases, including five deaths), and Peru (n= 2 cases) (1–3).
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 — Brazil [Internet]. 2026-06-11 [cited 2026 Aug 29]. Available from: https://healthwatch-global.com/en/outbreak/d854c5b4-e475-4bb8-a707-6c48b2c3b2d5. Data source: PAHO.
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