Search results
Nov 13, 2020 · Epidemic typhus is a rare disease caused by Rickettsia prowazekii bacteria and spread by body lice. Learn how to prevent, diagnose, and treat this serious infection and its relapse form, Brill-Zinsser disease.
Aug 8, 2023 · Rickettsia prowazekii is an obligate, intracellular, gram-negative coccobacillus belonging to the genus Rickettsia. It is the causative agent of epidemic typhus which is transmitted by the human body louse. Epidemic typhus presents with a high fever, myalgias, headache, dry cough, delirium and a rash that begins on the trunk and spreads ...
- Sami M. Akram, Megan Ladd, Kevin C. King
- 2023/08/08
Rickettsia prowazekii is a species of gram-negative, alphaproteobacteria, obligate intracellular parasitic, aerobic bacillus bacteria that is the etiologic agent of epidemic typhus, transmitted in the feces of lice. In North America, the main reservoir for R. prowazekii is the flying squirrel.
- R. prowazekii
- Rickettsiaceae
Rickettsia prowazekii is a pleomorphic, obligate intracellular, Gram negative coccobacillus in the family Rickettsiaceae and order Rickettsiales of the α-Proteobacteria. It belongs to the typhus group of the Rickettsia. The disease associated with this organism is usually called epidemic typhus, although some authors use the
- 600KB
- 5
Rickettsia prowazekii, a typhus group rickettsia, is the etiologic agent of epidemic or louse-borne typhus and Brill-Zinsser disease ( 3 ). Epidemiology. Epidemic typhus was first considered a disease restricted to the human being, with human to human transmission occurring via the human body louse ( Pediculus humanis corporis) ( 1, 3 ).
Jan 1, 2019 · Rickettsiae are commonly defined as genetically related, obligately intracellular bacteria that reside in an arthropod host during a part of their zoonotic cycle. By this definition, rickettsiae are members of at least seven genera: Rickettsia, Orientia, Ehrlichia, Anaplasma, Neorickettsia, Neoerhrlichia, and Wolbachia.
Oct 13, 2021 · The TG rickettsiae include R. typhii (murine typhus) and R. prowazekii (epidemic typhus) [ 6 ]. Rickettsial infections occur worldwide, with the geographic distribution of each species dependent on the vector, natural host, and climate [ 7 ].