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Afebrile spotted fever group Rickettsia infection after a bite from a Dermacentor variabilis tick infected with Rickettsia montanensis.

ABSTRACT: Several spotted fever group rickettsiae (SFGR) previously believed to be nonpathogenic are speculated to contribute to infections commonly misdiagnosed as Rocky Mountain spotted fever (RMSF) in the United States, but confirmation is difficult in cases with mild or absent systemic symptoms. We report an afebrile rash illness occurring in a patient 4 days after being bitten by a Rickettsia montanensis-positive Dermacentor variabilis tick. The patient's serological profile was consistent with confirmed SFGR infection.

SUBMITTER: McQuiston JH

PROVIDER: S-EPMC4699432 | biostudies-literature | 2012 Dec

REPOSITORIES: biostudies-literature

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Afebrile spotted fever group Rickettsia infection after a bite from a Dermacentor variabilis tick infected with Rickettsia montanensis.

McQuiston Jennifer H JH Zemtsova Galina G Perniciaro Jamie J Hutson Mark M Singleton Joseph J Nicholson William L WL Levin Michael L ML

Vector borne and zoonotic diseases (Larchmont, N.Y.) 20121115 12

Several spotted fever group rickettsiae (SFGR) previously believed to be nonpathogenic are speculated to contribute to infections commonly misdiagnosed as Rocky Mountain spotted fever (RMSF) in the United States, but confirmation is difficult in cases with mild or absent systemic symptoms. We report an afebrile rash illness occurring in a patient 4 days after being bitten by a Rickettsia montanensis-positive Dermacentor variabilis tick. The patient's serological profile was consistent with confi ...[more]

PMID: 23153005

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