In brief
Videos, infographics, key statistics, expert interviews… Find the latest news and key information about the West Nile virus here
national bulletin
West Nile Virus in Metropolitan France. 2024 Report.
Key Points In 2024, 38 locally acquired human cases of West Nile virus infection were identified in the Provence-Alpes-Côte d’Azur, Occitanie, and Nouvelle-Aquitaine: the departments of Var (n=24...
The disease
An arbovirus with an evolving and unpredictable epidemiology
West Nile Virus is an arbovirus of the genus Flavivirus (family Flaviviridae). It was first isolated in 1937 in the West Nile District of Uganda, hence its name. It has historically been responsible for epidemics in Africa, the Middle...
What We Do
The West Nile virus affects several European regions every year. In France, it is regularly detected along the Mediterranean coast. Its epidemiology is dynamic, influenced by various factors, particularly environmental and climatic ones.
Surveillance of West Nile virus in humans
The West Nile...
Data
The West Nile virus in France and Europe
West Nile virus in mainland France in 2025
Data for the year 2025 are included in the weekly bulletin on arboviruses in mainland France.
Publications
Here you will find the latest scientific publications related to the studies and research conducted by Santé publique France.
2 publications
article
Evaluation of the West Nile virus surveillance system in Guadeloupe using the Oasis method
rapport/synthèse
Evaluation of the Seasonal Surveillance System for Neuroinvasive West Nile Virus Infections, 2017
In relation to
Chikungunya
thematic dossier
Chikungunya is a viral disease transmitted by mosquitoes of the genus Aedes. The most common symptoms are fever and joint pain.
Dengue
thematic dossier
Dengue fever is a viral disease transmitted by mosquitoes of the genus Aedes. The most common symptoms are fever and joint pain. Its complications can be severe.
Zika
thematic dossier
Zika is a viral disease transmitted primarily by mosquitoes but also through sexual contact. Symptoms are usually mild, but the virus can cause birth defects if a woman becomes infected during...
