West Nile virus in France 2025

In 2025, during the enhanced surveillance period (May 1 to November 30) 62 autochthonous human cases of West Nile virus infection were identified in seventeen departments across six regions were affected: Provence-Alpes-Côte d’Azur, Nouvelle-Aquitaine, Occitanie, Île-de-France, Normandy, and Auvergne-Rhône-Alpes.