The etiologic agent of epidemic typhus in the material is which Rickettsia species?

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Multiple Choice

The etiologic agent of epidemic typhus in the material is which Rickettsia species?

Explanation:
Epidemic typhus is caused by Rickettsia prowazekii, an intracellular bacterium transmitted mainly by the human body louse. People become infected when lice feeding on an infected person contaminate their feces, which are scratched into the bite site, allowing the bacteria to enter. This distinguishes it from other Rickettsia species: Rickettsia typhi causes endemic (murine) typhus and is transmitted by fleas; Rickettsia akari causes rickettsialpox transmitted by mites; Rickettsia conorii causes Mediterranean spotted fever transmitted by ticks.

Epidemic typhus is caused by Rickettsia prowazekii, an intracellular bacterium transmitted mainly by the human body louse. People become infected when lice feeding on an infected person contaminate their feces, which are scratched into the bite site, allowing the bacteria to enter. This distinguishes it from other Rickettsia species: Rickettsia typhi causes endemic (murine) typhus and is transmitted by fleas; Rickettsia akari causes rickettsialpox transmitted by mites; Rickettsia conorii causes Mediterranean spotted fever transmitted by ticks.

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