Acute Communicable
Disease Control

Contact Information
County of Los Angeles
Department of Public Health
Acute Communicable Disease Control
313 N. Figueroa Street, #212
Los Angeles, CA 90012
Phone: (213) 240-7941
Fax: (213) 482-4856

Call 211 For Information 24/7

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Acute Communicable Disease Control
Relapsing Fever
image of tick bites
This 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.

Los Angeles County
Additional Resources  
Public Health has made reasonable efforts to provide accurate translation. However, no computerized translation is perfect and is not intended to replace traditional translation methods. If questions arise concerning the accuracy of the information, please refer to the English edition of the website, which is the official version.
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