Rickettsia Prowazekii

In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2022 Jan.


Rickettsia prowazekii is an intracellular, gram-negative coccobacillus. It is an obligate parasite. R. prowazekii belongs to the genus Rickettsia and is the causative agent of epidemic typhus. The genus Rickettsia is composed of gram-negative bacteria. Rickettsiae are the closest known relatives of mitochondria in eukaryotic cells.

Publication types

  • Study Guide