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Chikungunya Virus

Chikungunya is an illness spread by the bite of an infected mosquito. Chikungunya virus is transmitted in certain countries in Africa, Asia, Europe, the Indian and Pacific Oceans, the Caribbean, and the Americas. Cases in the U.S. are very rare and usually occur after travel to an area where chikungunya is common. Not all mosquito bites will make you sick, but it is still important to take steps to protect yourself and your family while traveling. Chikungunya is preventable. Please visit the Centers for Disease Control and Prevention (CDC) Travelers' Health page for more information on how to protect yourself from mosquito bites while traveling.

General information on chikungunya, including signs and symptoms, treatment, and resources.

Chart with chikungunya virus data.


Information for local health departments, health care providers, or those looking for information on reporting, surveillance, or diagnosis of chikungunya.

Find tips on preventing mosquito bites.

Questions about illnesses spread by mosquitoes? Contact us!
Phone: 608-267-9003 | Fax: 608-261-4976

Last revised June 15, 2022