As of 9 June 2025, public health authorities in France have reported 25 cases of locally acquired chikungunya virus disease in 11 different local administrative units. All clusters are currently classified as active. The largest cluster consists of 10 cases and is located in Salon-de-Provence, Bouches-du-Rhône department.
This week authorities reported the first locally acquired chikungunya virus disease case from the Gironde department. In the previous week authorities reported the first locally acquired chikungunya virus disease case from the Bas-Rhin department. The other departments have reported locally acquired chikungunya virus disease or dengue cases in previous years.
More locally acquired cases are expected in the upcoming summer season.
Optimal mosquito protection 24/7, also in cities (also against other mosquito-borne diseases such as dengue). The Swiss Expert Committee for Travel Medicine does not recommend chikungunya vaccination for travelers visiting mainland France or Corsica.