Which pathogen is primarily associated with Lyme disease transmitted by Ixodes ticks?

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Study for the NBME Microbiology Test. Utilize flashcards and multiple choice questions, each with explanations. Prepare confidently for your exam!

Multiple Choice

Which pathogen is primarily associated with Lyme disease transmitted by Ixodes ticks?

Explanation:
Lyme disease is caused by Borrelia burgdorferi, a spirochete, and is transmitted to humans by Ixodes ticks. This organism is the classic etiologic agent of Lyme disease, distinguishing it from other tick- or flea-borne illnesses. Ehrlichia chaffeensis causes ehrlichiosis, Rickettsia rickettsii causes Rocky Mountain spotted fever, and Yersinia pestis causes plague transmitted by fleas—organisms linked to different diseases and vectors. So Borrelia burgdorferi best fits the association with Lyme disease.

Lyme disease is caused by Borrelia burgdorferi, a spirochete, and is transmitted to humans by Ixodes ticks. This organism is the classic etiologic agent of Lyme disease, distinguishing it from other tick- or flea-borne illnesses. Ehrlichia chaffeensis causes ehrlichiosis, Rickettsia rickettsii causes Rocky Mountain spotted fever, and Yersinia pestis causes plague transmitted by fleas—organisms linked to different diseases and vectors. So Borrelia burgdorferi best fits the association with Lyme disease.

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