Which genus of spirochete bacteria causes Tick-Borne Relapsing Fever (TBRF) vectored by *Ornithodoros*?
Answer
*Borrelia* genus, such as *Borrelia turicatae*.
Tick-Borne Relapsing Fever (TBRF) is specifically linked to spirochete bacteria belonging to the *Borrelia* genus. In the United States context, *Borrelia turicatae* is cited as an example of the causative agent transmitted by *Ornithodoros* soft ticks, which belong to the Argasidae family. This agent is explicitly differentiated from *Borrelia burgdorferi*, which is responsible for causing Lyme disease, an illness traditionally associated with hard ticks.
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