7 Countries Under Chikungunya Outbreak Alert

As thousands of French vacationers plan their summer holiday to visit islands in the Indian Ocean, a mosquito-transmitted disease has become a significant health nuisance in 2025.

To notify international travelers, the U.S. Centers for Disease Control and Prevention (CDC) recently reissued a Level 2 Travel Advisory regarding chikungunya outbreaks in several countries in the region, including Kenya, Madagascar, Mauritius, Mayotte, Réunion, Somalia, and Sri Lanka.

Numerious cases of Chikungunya, both imported and local, have been detected in these vacation destinations.

As of June 10, 2025, the CDC writes, 'Most people infected with the chikungunya virus develop some symptoms. You can protect yourself from disease by preventing mosquito bites, which includes using insect repellent, wearing long-sleeved shirts and pants, and staying in places with air conditioning or that have screens on the windows and doors.

Additionally, vaccination is recommended for travelers who are visiting an area with a chikungunya outbreak. Two chikungunya vaccines are approved for use in the United States, which are commercially available at clinics and pharmacies.