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Paris, June 14, 2025 — French health authorities have confirmed the first locally transmitted case of chikungunya in mainland France this year, marking a significant public health development as the mosquito-borne virus continues to spread in parts of Europe.
The Regional Health Agency (ARS) of Provence-Alpes-Côte d’Azur (PACA) reported the case in the town of La Crau, located in the southern department of Var. According to the ARS, the patient had not traveled to any area known for chikungunya outbreaks in the 15 days prior to the onset of symptoms, classifying this as an indigenous case. This indicates that the virus was contracted within France, suggesting the presence of infected mosquitoes in the region.
In response, local authorities have launched a door-to-door survey to identify any additional cases and are implementing immediate measures to limit the risk of further spread. These include mosquito control operations on public roads and in private gardens, as well as public health campaigns to inform residents about prevention methods. Healthcare providers and laboratories in the area have also been mobilized to monitor, screen, and treat potential cases.
Meanwhile, France’s overseas territory of La Réunion is grappling with a substantial chikungunya outbreak. Since the beginning of 2025, the island has reported 53,749 confirmed cases and 23 related deaths. The outbreak has prompted the US Centers for Disease Control and Prevention (CDC) to reissue travel advisories for several countries affected by chikungunya, including La Réunion, Kenya, Madagascar, Mauritius, Mayotte, Somalia, and Sri Lanka.
Chikungunya is a viral illness transmitted to humans by mosquitoes, primarily the Aedes species. Symptoms typically include high fever, severe joint and muscle pain, fatigue, headaches, and rashes. While the disease is rarely fatal and most cases resolve within two to three days, about 1 in 1,000 cases can result in death. There is currently no effective antiviral treatment, but individuals who recover generally acquire lifelong immunity.
The CDC advises travelers to protect themselves by preventing mosquito bites—using insect repellent, wearing long-sleeved clothing, and staying in air-conditioned or well-screened accommodations. Vaccination is also recommended for those traveling to outbreak areas.
Disclaimer
This article is based on information available as of June 15, 2025, and is intended for informational purposes only. For the latest updates and official health guidance, please consult your local health authorities or the World Health Organization.
