West Nile virus in France
As of October 20 2025, 57 human cases of vector-acquired West Nile virus infection have been identified in 17 departments of mainland France. Cases have been recorded in the Provence-Alpes-Côte d'Azur, Nouvelle-Aquitaine and Occitanie regions, historically affected by the West Nile virus, and in Île-de-France, Auvergne-Rhône-Alpes and Normandy, affected for the first time in 2025. Please see our Topics in Brief article for further details on West Nile virus.
West Nile virus in France
As of 13 October 2025, 48 locally acquired cases of West Nile virus were reported in France during 2025. Cases have been identified from 15 departments in the following regions: Provence Alpes-Côte d'Azur, Occitanie, Nouvelle-Aquitane and for the first time Île-de-France and Auvergne-Rhône-Alpes. Please see our Topics in Brief article for further details on West Nile virus.
West Nile virus in France
As of 15 September 2025, 32 locally acquired cases of West Nile virus were reported in France. Cases have been identified from 10 departments in the following regions: Provence Alpes-Côte d'Azur, Occitanie, and for the first time Île-de-France and Auvergne-Rhône-Alpes. Please see our Topics in Brief article for further details on West Nile virus.
West Nile virus in France
As of 3 September 2025, 20 locally acquired cases of West Nile virus were reported from France. Cases have been reported from Provence Alpes-Côte d'Azur, Occitanie, and for the first time Île-de-France and Auvergne-Rhône-Alpes. Please see our Topics in Brief article for further details on West Nile virus.
West Nile virus in France
As of 19 August 2025, 13 locally acquired cases of West Nile virus were reported from France. Cases have been reported from Provence Alpes-Côte d'Azur, Occitanie, Corsica and for the first time Île-de-France. Please see our Topics in Brief article for further details on West Nile virus.
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