Any of several common, often asymptomatic, sexually transmitted diseases caused by the microorganism Chlamydia trachomatis.
Any of various coccoid microorganisms of the genus Chlamydia that are pathogenic to humans and other animals.
A sexually transmitted infection caused by Neisseria gonorrhoeae, a species of bacteria (the gonococcus) that affects the mucous membrane of the genital and urinary tracts.