A species of facultatively aerobic, Gram-negative, coccobacilli assigned to the phylum Chlamydiae. This species cannot be grown on an artificial medium, lacks peptidoglycan within the cell wall, forms elementary and reticulate bodies and can be identified using monoclonal antibodies (mAbs) to epitopes in the VS 4 region of MOMP along with DNA sequencing. C. trachomatis is an obligate intracellular parasite that can be transmitted through sexual contact causing infections of the genital tract and rectum and infertility in women, as well as cause eye infections.

Any bacterial organism that can be assigned to the species Chlamydia trachomatis.

Bacteria belonging to genus Chlamydia; causes a variety of ocular and urogenital diseases.

Type species of CHLAMYDIA causing a variety of ocular and urogenital diseases.

Chlamydia (kluh-MID-e-uh) trachomatis (truh-KOH-muh-tis) is a common sexually transmitted infection (STI) caused by bacteria. You might not know you have chlamydia because many people don't have signs or symptoms, such as genital pain and discharge from the vagina or penis.