On May 14, 2026, the U.S. Centers for Disease Control and Prevention (CDC) issued a new travel health notice for Mauritius due to a chikungunya outbreak, making it the fourth country or territory on the agency's current active warning list. The other three are Suriname, with an outbreak since 2024, and two others not specified in the source.
This marks the widest multi-country chikungunya warning from the CDC since 2014, when a major outbreak spread across the Caribbean and the Americas. Chikungunya is a mosquito-borne virus that causes fever and severe joint pain, often lasting for weeks or months.
The CDC advises travelers to Mauritius to take precautions against mosquito bites, such as using insect repellent and wearing long sleeves. Pregnant women and those with underlying health conditions are urged to consult a healthcare provider before travel.
As of June 16, 2026, no additional countries have been added to the list. The CDC continues to monitor the situation and update travel notices as needed.