Relapsing Fever is a multisystem disease caused by the spirochetes Borrelia (B.) hermsii, B. turicatae, and B. parkeri. The disease occurs primarily in the western U.S. The pathogen is transmitted by soft ticks, which feed mainly at night and can transmit spirochetes within minutes.


Signs/Symptoms:
Repeating bouts of fever and chills, headache, muscle and joint pain lasting 2 - 9 days, alternating with days of no fever. Blood tests detect the bacterium during fever episodes.

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