Rickettsia rickettsii
Rickettsia rickettsii is a Gram-negative, intracellular, coccobacillus bacterium that was first discovered in 1902. R. rickettsii is the causative agent of Rocky Mountain Spotted Fever and is transferred to its host via a tick bite. It is one of the most pathogenic Rickettsia species and affects a large majority of the Western Hemisphere, most commonly the Americas.
| Rickettsia rickettsii | |
|---|---|
| Scientific classification | |
| Domain: | Bacteria |
| Phylum: | Pseudomonadota |
| Class: | Alphaproteobacteria |
| Order: | Rickettsiales |
| Family: | Rickettsiaceae |
| Genus: | Rickettsia |
| Species group: | Spotted fever group |
| Species: | R. rickettsii |
| Binomial name | |
| Rickettsia rickettsii Brumpt, 1922 | |
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