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Borrelia miyamotoi

Borrelia miyamotoi is a species of bacteria spread by the deer tick. The deer tick also is known as the black-legged tick. Deer ticks can be found in every county in Wisconsin.

Not all tick bites will make you sick, but it’s important to protect yourself and your family while enjoying time outdoors.

B. miyamotoi is preventable. Learn more about Tick Bite Prevention.

Read about Signs and Symptoms, along with treatment, from the CDC (Centers for Disease Control and Prevention).

About B. miyamotoi

Learn more about B. miyamotoi, including signs and symptoms, treatment, and resources.


Map and charts with B. miyamotoi data.


Reporting and Surveillance

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

Tick Bite Prevention

Tips to prevent tick bites.

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 13, 2023