Tick-borne relapsing fever caused by Borrelia hermsii, Montana

Five persons contracted tick-borne relapsing fever after staying in a cabin in western Montana. Borrelia hermsii was isolated from the blood of two patients, and Ornithodoros hermsi ticks were collected from the cabin, the first demonstration of this bacterium and tick in Montana. Relapsing fever sh...

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Bibliographic Details
Published in:Emerging infectious diseases 2003-09, Vol.9 (9), p.1151-1154
Main Authors: Schwan, Tom G, Policastro, Paul F, Miller, Zachary, Thompson, Robert L, Damrow, Todd, Keirans, James E
Format: Article
Language:English
Subjects:
Adolescent
Adult
Animals
Borrelia - isolation & purification
Borrelia - pathogenicity
Borrelia hermsii
Child, Preschool
Diagnosis
Disease Outbreaks
Dispatch
Female
Humans
Male
Middle Aged
Montana
Montana - epidemiology
Ornithodoros - microbiology
Ornithodoros hermsi
Relapsing fever
Relapsing Fever - epidemiology
Relapsing Fever - physiopathology
Symptomatology
Tick-borne diseases
tick-borne relapsing fever
United States
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Summary:Five persons contracted tick-borne relapsing fever after staying in a cabin in western Montana. Borrelia hermsii was isolated from the blood of two patients, and Ornithodoros hermsi ticks were collected from the cabin, the first demonstration of this bacterium and tick in Montana. Relapsing fever should be considered when patients who reside or have vacationed in western Montana exhibit a recurring febrile illness.
ISSN:1080-6040
1080-6059
DOI:10.3201/eid0909.030280