Key Points DengueDengue activity is low throughout the country.ChikungunyaSince late January (Week 04), 1,604 cases of chikungunya have been laboratory-confirmed in French Guiana,...

Key PointsSeveral Outbreaks of Local Transmission DetectedAs of August 18, 2026, in Nouvelle-Aquitaine, three episodes of locally acquired chikungunya transmission were identified in...

Key Points Domestic cases from May 1 to August 17, 2026 <li data-list-item-id="ef835ba7215b4292ded737b6f657fb7e3">8 cases of chikungunya <li data-list-item-id="ea96f148ba01e1f78671e6ff4f9ef5d51">3 cases of dengue <li data-list-item-id="e2c6f25b4cb456e43abd09ba42424cd5f">0 cases of Zika   <li data-list-item-id="e258ffb59de20d9f7716061adf9775830">6 cases of West Nile virus infection

Key PointsWest Nile Virus InfectionsHigh-Risk Period for West Nile Virus InfectionA total of 9 human cases have been identified in the Provence-Alpes-Côte d’Azur region (+5 cases...

Key Points Chikungunya, Dengue, and ZikaIndigenous CasesAs of August 17, 2026, six outbreaks of locally transmitted cases have been identified in mainland France:3 chikungunya outbreaks...

Chikungunya is a viral disease transmitted by mosquitoes of the genus Aedes. The most common symptoms are fever and joint pain.

Key PointsDengueDengue activity is low throughout the country. One case was confirmed last week (Week 32). Since the beginning of the year, 12 cases of dengue have been...

Key Points Two Outbreaks of Local Transmission DetectedAs of August 10, 2026, in Nouvelle-Aquitaine, two outbreaks of local transmission of chikungunya have been identified in...