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Illnesses Spread by Ticks

Illnesses spread by ticks are common in Wisconsin.

Not all ticks spread illness, and you won’t get sick from every tick bite. However, it’s important to stay aware of ticks, the illnesses they cause, and how to prevent bites

Illnesses spread by ticks are preventable.

There are many ways to prevent tick bites, including doing daily tick checks, using insect repellent, and wearing appropriate clothes when you are outdoors.

Check out other tips for Tick Bite Prevention.






Just for you and your family

Just for health care providers

Order free resources from DHS. Here’s how:

  • Download our Forms/Publications Order, F-80025A. Use this form to order multiple forms and publications at once. Internet Explorer users: If you get a Windows Security popup box asking you to log in, select Cancel. The form will download without logging in.
  • Complete the form by using the tab key to work through the input fields. Don’t use the return or enter key.
  • Email any questions or the completed form to

  • Information and tick control tips from the National Pesticide Information Center—Ticks and Tick Bites
  • A guide for homeowners, pest control operators, and public health officials to prevent illnesses spread by ticks from the state of Connecticut—The Connecticut Agricultural Experiment Station
  • Information from the University of Wisconsin-Madison Medical Entomology Laboratory—Wisconsin Ticks and Tick-borne Diseases
  • Information on ticks found in the Midwest, surveillance resources, and tick biology and development from the Midwest Center of Excellence for Vector-Borne Diseases—Ticks

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 August 8, 2023