Key PointsSince late January (S2026-04), 108 cases of chikungunya have been confirmed, mainly in the Western Littoral sector (82%), but cases have also been detected in the Cayenne...

Key Points Since the detection of the first case of chikungunya at the end of January, 81 cases have been biologically confirmed by hospital and private laboratories, primarily in the...

Key Points Since the detection of the first case of chikungunya in late January 2026, 51 cases have been confirmed by laboratories. Viral circulation remains primarily concentrated on...

Key Points The first case of chikungunya in the French Departments of the Americas (DFA) was detected in Saint Martin in October 2013. In French Guiana, the first case—imported from...

Key Points Since the detection of the first case of chikungunya in French Guiana at the end of January, 38 cases have been biologically confirmed by RT-PCR by hospital and private...

Key Points 2025, an exceptional year for chikungunya transmission in mainland France and Occitanie: a very high number of imported cases from the start of enhanced surveillance, linked...

Key points Hospitalized cases 554 cases hospitalized for more than 24 hours reported to the Santé publique France regional office in Réunion, including 138 severe cases; 4 distinct...

Key Points In 2024, in the Pays de la Loire region: The tiger mosquito will be present in all departments of the Pays de la Loire region. The number of municipalities colonized by the...

Key Points High overall immunity across the island (66.0%) and in each district (ranging from 58.1% to 74.3%). Low risk of a new large-scale outbreak during the 2025–2026 southern...

Key Points Chikungunya, Dengue, and Zika Indigenous cases As of November 24, 2025, 93 outbreaks of locally transmitted chikungunya and dengue and a total of 834 cases have been...