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Official report date — in isolated zones, field onset typically precedes this by days to weeks.
In 2025, a resurgence of chikungunya virus (CHIKV) disease was noted in a number of countries, including some that had not reported substantial case numbers in recent years. Between 1 January and 30 September 2025, a total of 445 271 suspected and confirmed CHIKV disease cases and 155 deaths were reported globally from 40 countries, including autochthonous and travel imported cases. Some WHO Regio
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HealthWatch Global. Chikungunya outbreak — Global [Internet]. 2025-10-03 [cited 2026 Jun 26]. Available from: https://healthwatch-global.com/en/outbreak/2358aa2b-cde4-4b73-9484-b6c88713dcda. Data source: WHO DON.
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