Cumulative cases since outbreak start — WHO bulletin dated 2025-03-14
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 (24 April 2026): 151 confirmed chikungunya cases were reported from sentinel sites in Colombo, Gampaha and Kandy between 1 January and mid-March 2025. Later 2025 data show a mid-year peak (June-July) and a resurgence in Jaffna, but no updated cumulative total or 2026 figures have been published.
Case trend
Cite this page (Vancouver)
HealthWatch Global. Chikungunya outbreak — Sri Lanka [Internet]. 2025-03-14 [cited 2026 Aug 19]. Available from: https://healthwatch-global.com/en/outbreak/7f978062-089a-4eb0-a784-1e8f2d752675. Data source: WHO.
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