Key PointsChikungunya, Dengue, and Zika Local cases No locally acquired cases have been identified in mainland France.Imported cases From May 1, when enhanced surveillance began, through...

Key Points Local casesIn 2025, indigenous cases of chikungunya and dengue were identified for the first time in Nouvelle-Aquitaine.From May 1 to November 30, 2025, 18 episodes of local...

Key PointsSince late January (Week 04), 513 cases of chikungunya have been laboratory-confirmed in French Guiana, including 74 in Week 21 (data incomplete due to a data reception issue...

Key PointsChikungunya, Dengue, and ZikaLocal casesNo locally acquired cases have been identified in mainland France.Imported casesFrom May 1, when enhanced surveillance began, through...

The Aedes albopictus mosquito, commonly known as the tiger mosquito, which transmits diseases (arboviruses) such as dengue, chikungunya, and Zika, is now established throughout all...

Key Points Since late January (Week 4), 338 cases of chikungunya have been laboratory-confirmed in French Guiana. In S19, 71 cases were confirmed, compared to 52 in S18, reflecting an...

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...