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Borrelia miyamotoi

Borrelia miyamotoi is a species of bacteria spread by the deer tick, also known as the black-legged tick. Ticks that spread B. miyamotoi can be found in every county in Wisconsin. Not all tick bites will make you sick, but it is still important to take steps to protect yourself and your family while enjoying time outdoors. B. miyamotoi is preventable and treatable.

General information on B. miyamotoi, including information on signs and symptoms, treatment, and resources.

Charts with B. miyamotoi data.


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

Tips on preventing tick bites.

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

Last revised April 1, 2022