. Chlamydia trachomatis is the most common cause of sexually transmitted venereal infection in the world.
. Chlamydia trachomatis can cause serious complications in women: cervicitis, urethritis, endometritis, pelvic inflammatory disease (PID), and increased incidence of ectopic pregnancy and infertility.
. Vertical transmission to neonates during parturition can result in inclusion conjunctivitis or pneumonia.