Summer 2025: early emergence of chikungunya in mainland France

An unprecedented situation has arisen this summer, with the first locally acquired cases of chikungunya detected as early as June, notably affecting the Grand Est region for the very first time. Chikungunya is a viral disease mainly transmitted to humans by bites from mosquitoes of the Aedes genus. It is characterized by symptoms such as fever and intense joint pain. In the wake of severe outbreaks in overseas departments and regions and several episodes in mainland France, the French health authorities keep a close eye on any locally acquired cases emerging early in several regions. 

Find out more (in French - English version soon available)