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Outbreak Updates

17 March 2026

Argentina

Chikungunya in Argentina

As of 16 March 2026, a total of 2,701 chikungunya cases have been reported in Argentina since July 2025. Out of 103 confirmed or probable cases, 63 were locally acquired and 40 cases had a history of travel to either Bolivia, Brazil, Cuba or Paraguay. Please see our Topics in Brief article for further details on chikungunya.

Source: State Chikungunya in brief

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UK Health Security Agency

Hospital for Tropical Diseases

Liverpool School of Tropical Medicine

London School of Hygiene and Tropical Medicine

University College London Hospitals NHS Foundation Trust

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