Chlamydia trachomatis comprises 15 known serovariants associated with trachomatis and gentourinary infection, and three serovariants associated with Lymphogranuloma venereum (LGV). In men, at least 40% cases of Nongonococcal urethritis are associated with chlamydia infection and epididymitis. Approximately 70% of women with endocervical infections and up to 50% of men with urethral infections are symptomatic. Complications of chlamydia infection in women include cervictis, urethritis, endometritis, pelvic inflammatory diseases (PID) and increased incidence of ectopic pregnancy and infertility. Vertical transmission of the disease during parturition from mother to neonate can result in inclusion conjunctivitis and pneumonia.