Curved, straight or bean-shaped: bacilli come in many variants and are widely spread.

Rickettsia typhi
(bacterium)

Rickettsia typhi is a Gram-negative, aerobic, rod-shaped bacterium. It belongs to the family of Rickettsiaceae. Rickettsia typhi may elicit murine typhus, a similar but milder form of epidemic typhus.
Rickettsia typhi is primarily transmitted by rat flea.

» Necessary spectrum of antimicrobial activity
Bactericidal