Hard Tick Relapsing Fever (Borrelia miyamotoi)

Hard tick relapsing fever (HTRF) is caused by Borrelia miyamotoi bacteria, which is distantly related to the bacteria that cause Lyme disease. Small numbers of human cases have been reported since 2011 from the Upper Midwest and Northeastern states.

• About Hard Tick Relapsing Fever (HRTF)
  Basic information including transmission, prevention, signs and symptoms, and answers to frequently asked questions.
• Hard Tick Relapsing Fever Statistics
  Maps for Minnesota.
• Information for Health Professionals on Hard Tick Relapsing Fever (HRTF)
  Clinical presentation, diagnosis and required reporting information.