Cumulative cases since outbreak start — WHO bulletin dated 2026-02-22
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.
WHO Rapid Risk Assessment (16 March 2026): Guinea's diphtheria resurgence, ongoing since June 2025, reported 795 suspected cases (609 confirmed) and 151 deaths (CFR 19%, among the highest in the region) as of 22 February 2026, concentrated in Siguiri, Kankan, Mandiana and Dabola. An increasing weekly trend has been observed since week 5, 2026 after a plateau; sample-collection kits are out of stock at the Kankan lab, hindering confirmation.
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 — Guinea [Internet]. 2026-02-22 [cited 2026 Aug 19]. Available from: https://healthwatch-global.com/en/outbreak/dda0cc84-6f0a-4350-9c92-1d5c51394c9c. Data source: WHO.
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