An outbreak of 4 autochthonous (locally transmitted) cases of dengue fever was detected in Gardanne in the department of Bouches-du-Rhône. Symptoms of the cases occurred between the second half of July and early August 2023.

At least 47 autochthonous cases were recorded in France in 2022. The affected regions were Occitania (9 cases) and Provence-Alpes-Cote d'Azur (36 cases).