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Jamestown Canyon Virus

Jamestown Canyon is an illness spread by the bite of an infected mosquito. This disease is relatively rare in Wisconsin, but the number of reported cases has recently increased. Many different types of mosquitoes can transmit the virus. Not all mosquito bites will make you sick, but it is still important to take steps to protect yourself and your family while enjoying time outdoors. Jamestown Canyon is preventable.

General information on Jamestown Canyon, including information on signs and symptoms, treatment, and resources.

Maps and charts with Jamestown Canyon virus data.


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

Get 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