Chikungunya, Dengue, Zika, and West Nile Virus in mainland France. Enhanced Surveillance Bulletin of July 1, 2026.
Key Points
Chikungunya, Dengue, and Zika
Indigenous Cases
- No locally acquired cases have been identified in mainland France.
Imported cases
From May 1, when enhanced surveillance began, through June 28, 2026, the following cases were identified:
- 62 imported cases of chikungunya
- 189 imported cases of dengue
- 7 imported cases of Zika
West Nile virus infections
Indigenous cases
- No locally transmitted cases have been identified in mainland France.
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...
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