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Powassan Virus

Powassan virus is an illness spread by ticks. Powassan virus is very rare in Wisconsin, however, it's important to protect yourself and your family while enjoying time outdoors. Powassan virus is preventable.

About Powassan virus

Learn more about Powassan virus, including resources, signs and symptoms.


Maps and charts with Powassan virus data.


Reporting and surveillance

Local or tribal health departments and health care providers can learn about disease reporting, testing, and more.

Tick bite prevention

Tips to prevent tick bites.


Learn more about the Powassan virus from the CDC (Centers for Disease Control and Prevention).

Contact us

Questions about illnesses spread by ticks? We’re here to help.

Bureau of Communicable Diseases
Phone: 608-267-9003
Fax: 608-261-4976

Last revised April 12, 2023