Chlamydia vs. Rickettsia

Chlamydianoun

(uncountable) Any of several common, often asymptomatic, sexually transmitted diseases caused by the microorganism Chlamydia trachomatis.

Chlamydianoun

(countable) Any of various coccoid microorganisms of the genus Chlamydia that are pathogenic to humans and other animals.

Chlamydianoun

a coccoid rickettsia which may infect birds and mammals; it causes infections of eyes and lungs and the genitourinary tract.

Chlamydianoun

a sexually transmitted infection caused by bacteria of the genus Chlamydia

Chlamydianoun

coccoid rickettsia infesting birds and mammals; cause infections of eyes and lungs and genitourinary tract

Chlamydia

Chlamydia, or more specifically a chlamydia infection, is a sexually transmitted infection caused by the bacterium Chlamydia trachomatis. Most people who are infected have no symptoms.

Rickettsianoun

Any of a group of gram-negative bacteria, of the genus Rickettsia, carried as parasites by ticks, fleas and lice; they cause typhus and other diseases

Rickettsianoun

any of a group of parasitic bacteria that live in arthropods (as ticks and mites) and can cause disease if transmitted to human beings

Rickettsia

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), bacilli (1–4 μm long), or threads (up to about 10 μm long). The term has nothing to do with rickets (which is a deficiency disease resulting from lack of vitamin D); the bacterial genus Rickettsia instead was named after Howard Taylor Ricketts, in honor of his pioneering work on tick-borne spotted fever.