Post-Camping Fever: What’s on the Smear?

A child develops a high fever after a camping trip in California. A blood smear reveals a surprising Spirochete. What is this tick-transmitted illness?

Tickborne relapsing fever


This blood smear was from a child who developed a high fever after returning from a camping trip in eastern California. What is the diagnosis?

What is the most likely diagnosis?

Babesiosis
Brucellosis
Leptospirosis
Rocky Mountain spotted fever
Tickborne relapsing fever

Borrelia hermsii, Infectious Disease, Ornithodoros, Spirochete, Tickborne relapsing fever

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