Case report: A retrospective serological analysis indicating human exposure to tick-borne relapsing fever spirochetes in Sonora, Mexico.

The article presents a case study of a 45-year-old woman who was admitted for hospitalization after experiencing various symptoms including fever, arthralgias and diaphoresis. A retrospective evaluation of the patient's history was conducted and her clinical summary resulted with the suspicion of a tick-borne relapsing fever (TBRF) is offered. The serological analysis suggests that the patient was exposed to TBRF spirochetes through Borrelia turicatae.