Relapsing fever

Tick-borne relapsing fever; Louse-borne relapsing fever

Relapsing fever is a bacterial infection transmitted by a louse or tick. It is characterized by repeated episodes of fever.

Body louse, female and larvae

This is a magnified view of a female body louse with larvae. Lice cause itching and a characteristic excoriated skin rash (looks like a scrape). They may also transmit diseases, including relapsing fever, typhus, and trench fever. (Image courtesy of the Centers for Disease Control and Prevention.)



Exams and Tests


Outlook (Prognosis)

Possible Complications

When to Contact a Medical Professional