Key points
- Chikungunya virus is spread through the bite of an infected mosquito.
- Locally acquired chikungunya virus disease (chikungunya) has not been reported in U.S. states or territories since 2019.
- The best way to prevent chikungunya is to prevent mosquito bites and get vaccinated before traveling, if vaccination is recommended for you.
Prevention tips
Chikungunya virus is spread to people through the bite of an infected mosquito. Mosquitoes bite during the day and night.
Anyone who spends time in a place where chikungunya occurs is at risk. Chikungunya occurs primarily in Africa, Southeast Asia, the Indian subcontinent, Pacific Region, and tropical regions of the Americas, but outbreaks have occurred in other locations that have the mosquitoes that spread the virus (Aedes species).
The best way to prevent chikungunya is to protect yourself from mosquito bites and get vaccinated before traveling, if vaccination is recommended for you.
- Use insect repellent
- Wear long-sleeved shirts and pants
- Treat clothing and gear with 0.5% permethrin
- Choose lodging with air conditioning or screens on windows and doors; use a mosquito net if you will be sleeping outdoors
Additional information about protecting yourself from mosquito bites while you are traveling is available on the CDC Mosquitoes website.
Getting vaccinated
All travelers to countries with risk of chikungunya should take steps to avoid mosquito bites and discuss the need for vaccination with their healthcare provider.