Rickettsia typhi

**Semantic type:** Bacterium

**Definition:** A species of aerobic, Gram negative, rod and cocci shaped bacteria assigned to the phylum Proteobacteria. This species is obligately intracellular, motile and transmitted to humans by a tick or flea host. R. typhi is a pathogen that causes murine typhus.

**Synonyms:** - RICKETTSIA TYPHI