Rickettsia is a genus of nonmotile, gram-negative, nonspore-forming, highly pleomorphic bacteria that may occur in the forms of cocci (0.1 μm in diameter)...

Rickettsia parkeri (abbreviated R. parkeri) is a gram-negative intracellular bacterium. The organism is found in the Western Hemisphere and is transmitted...

Rickettsia asiatica is a tick-borne pathogenic species borne by Ixodes ovatus. The type strain of Rickettsia asiatica sp. nov. is IO-1T (=CSUR R2T). Fujita...

Rickettsia typhi is a small, aerobic, obligate intracellular, rod shaped gram negative bacterium. It belongs to the typhus group of the Rickettsia genus...

Rickettsia prowazekii is a species of gram-negative, alphaproteobacteria, obligate intracellular parasitic, aerobic bacillus bacteria that is the etiologic...

Rickettsia rickettsii is a Gram-negative, intracellular, coccobacillus bacterium that was first discovered in 1902. Having a reduced genome, the bacterium...

Rickettsia conorii is a Gram-negative, obligate intracellular bacterium of the genus Rickettsia that causes human disease called boutonneuse fever, Mediterranean...

Rickettsia japonica is a species of Rickettsia. It can cause Japanese spotted fever. Hanaoka N, Matsutani M, Kawabata H, et al. (December 2009). "Diagnostic...

Rickettsia africae is a species of Rickettsia. It can cause African tick-bite fever. Fournier PE, El Karkouri K, Leroy Q, et al. (2009). "Analysis of...

hearing loss or loss of part of an arm or leg. The disease is caused by Rickettsia rickettsii, a type of bacterium that is primarily spread to humans by...