France's Mediterranean Coast Confirms Chikungunya Outbreaks

Chikungunya virus disease patients have been reported in 14 countries/territories in Europe this year. Several of these countries are positioned along the Mediterranean Sea.

In mainland France, the Health Agency reported on September 4, 2025, that an unprecedented situation has developed, with the number of locally acquired cases exceeding previously unseen levels.

As of early September 2025, 34 episodes of chikungunya had been reported, totaling 301 cases.

Mosquitos have transmitted the virus to people in the Provence-Alpes-Côte d'Azur, Corsica, Occitanie, Auvergne-Rhône-Alpes regions, already affected in previous years, and for the first time this year in Grand Est, Nouvelle-Aquitaine, and Bourgogne-Franche-Comté.

Additionally, 957 international travelers have been diagnosed with chikungunya while in France.

When planning a trip to France this fall, health agencies in the United Kingdom and the United States recommend speaking with a travel vaccine expert regarding chikungunya vaccination options.

In the U.S., travel clinics and pharmacies offer a U.S. FDA-approved chikungunya vaccine.