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 protect yourself from chikungunya is to prevent mosquito bites and get vaccinated before traveling, if recommended.
Prevention tips
Chikungunya virus is spread to people through the bite of an infected mosquito. Mosquitoes that spread chikungunya virus can 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 Aedes species mosquitoes that spread the virus.
The best way to protect yourself from chikungunya is to take steps to prevent mosquito bites and get vaccinated before traveling, if vaccination is recommended for you.
If you think you might have chikungunya, prevent further mosquito bites to reduce the risk of additional spread of the virus to uninfected mosquitoes.
Prevent mosquito bites
- Use Environmental Protection Agency (EPA)-registered 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.
Vaccination
In addition to preventing mosquito bites, a chikungunya vaccine may be recommended for travelers going to certain locations. Discuss the need for vaccination with your healthcare provider.