The infectious agent known to be transmitted by a vector that bites the host and causes a bulls eye rash is

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Multiple Choice

The infectious agent known to be transmitted by a vector that bites the host and causes a bulls eye rash is

Lyme disease is caused by Borrelia burgdorferi, a spirochete transmitted to humans by a bite from Ixodes ticks. The early, classic sign is erythema migrans, a circular rash that often has central clearing and resembles a bull’s-eye. This combination—a tick-borne transmission and the bull’s-eye rash—best fits Borrelia burgdorferi. The other organisms fit different scenarios: Rickettsia rickettsii can cause a tick-borne fever with a spotted rash rather than a bull’s-eye lesion; Yersinia pestis is flea-transmitted and linked to plague; Treponema pallidum is primarily spread by sexual contact and not via a vector.

Lyme disease is caused by Borrelia burgdorferi, a spirochete transmitted to humans by a bite from Ixodes ticks. The early, classic sign is erythema migrans, a circular rash that often has central clearing and resembles a bull’s-eye. This combination—a tick-borne transmission and the bull’s-eye rash—best fits Borrelia burgdorferi. The other organisms fit different scenarios: Rickettsia rickettsii can cause a tick-borne fever with a spotted rash rather than a bull’s-eye lesion; Yersinia pestis is flea-transmitted and linked to plague; Treponema pallidum is primarily spread by sexual contact and not via a vector.

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