Key PointsThe enhanced surveillance system for dengue, chikungunya, and Zika is active from May 1 to November 30, the period of activity for the Asian tiger mosquito (Aedes albopictus)...

Key Points Between May 1 and November 30, 2025, 120 cases of arbovirus diseases were reported in the region, all of which were imported:69 cases of chikungunya50 cases of dengue 1 case...

Key PointsIn 2025: a record number of imported chikungunya cases, linked to the outbreak in the Indian Ocean. Imported cases were also reported from Asia, Cuba, and sub-Saharan...

Key PointsIn 2025, during the enhanced surveillance period (May 1 to November 30), the following were identified in mainland France:809 locally acquired cases of chikungunya, including...

Key Points Chikungunya, dengue, ZikaEnhanced surveillance from May to November aimed at early case detection and reducing the risk of transmission within the region; epidemiological...

Key Points From the end of January (W4) through the fourth week of April (W17), 204 biologically confirmed cases of chikungunya were reported in French Guiana. The increase in the number...

Introduction - Between 2005 and 2007, the Chikungunya virus (CHIKV) caused a massive outbreak on Réunion Island, which peaked in February 2006. Whole blood collection was suspended on...

Key PointsIn Auvergne-Rhône-Alpes, in 2025, a record number of arbovirus cases:57 locally transmitted cases (53 chikungunya, 4 dengue)8 local outbreaks identified in 6 departments347...