Tick-Borne Relapsing Fever Spirochetes in the Americas

Tick-Borne Relapsing Fever Spirochetes in the Americas

Relapsing fever spirochetes are tick- and louse-borne pathogens that primarily afflict those in impoverished countries. Historically the pathogens have had a significant impact on public health, yet currently they are often overlooked because of the nonspecific display of disease. In this review, we discuss aspects of relapsing fever (RF) spirochete pathogenesis including the: (1) clinical mani...

Tick-borne relapsing fever.

Tick-borne relapsing fever is characterized by recurring fevers separated by afebrile periods and is accompanied by nonspecific constitutional symptoms. It occurs after a patient has been bitten by a tick infected with a Borrelia spirochete. The diagnosis of tick-borne relapsing fever requires an accurate characterization of the fever and a thorough medical, social, and travel history of the pa...

Tick-Borne Relapsing Fever, a Neglected Cause of Fever in Fars Province

Tick-borne relapsing fever is an endemic disease in some parts of Iran. Borellia persica, the most common cause of this disease in Iran, has a wide geographic distribution and is present in Alborz and Zagros mountain chains.Here we report a 16–year-old male patient who presented with two episodes of fever within 15 days. He had a history of few overnight stays in a cave of mountainous area in F...

Tick‐Borne Relapsing Fever in Dogs

BACKGROUND In the United States, Tick-Borne Relapsing Fever (TBRF) in dogs is caused by the spirochete bacteria Borrelia turicatae and Borrelia hermsii, transmitted by Ornithodoros spp. ticks. The hallmark diagnostic feature of this infection is the visualization of numerous spirochetes during standard blood smear examination. Although the course of spirochetemia has not been fully characterize...

Tick-borne relapsing fever in pregnancy.