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Cumulative cases since outbreak start — WHO DON bulletin dated 2026-06-24
Official report date — in isolated zones, field onset typically precedes this by days to weeks.
Yellow fever is a viral disease found in areas of Africa and the Americas, spread by infected mosquitoes. Following an increase of cases in the Americas in 2025, transmission activity remained into 2026. From 1 January to 26 May 2026, six countries reported a total of 79 human infections along with multiple epizootics, indicating active sylvatic circulation. In Africa, sustained activity continued
Case trend
First actions
Cite this page (Vancouver)
HealthWatch Global. Yellow fever outbreak — Global [Internet]. 2026-06-24 [cited 2026 Jun 26]. Available from: https://healthwatch-global.com/en/outbreak/2a574b83-2236-4a9b-be3e-ed45b5257277. Data source: WHO DON.
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