This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Sexually Transmitted Disease in the Female, Subject name: Gynaecology & Obstetrics
[{'content': 'Nongonococcal urethritis is caused by: \nSelect and explain. \nA. Chlamydia, B. LGV, C. Syphilis, D. Gardnerella vaginalis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. is a, i.e. ChlamydiaRef: Harrison 17th/ed, p823; Current diagnosis and treatment of STI p15Non gonococcal urethritis is caused by:* Chlamydia trachomatis (30-40%)* Ureaplasma urealyteum* Mycoplasma genitalium* E coli* Ureaplasma urealyticum* Trichomonas vaginalis* Herpes simplex virusRare Cases:* Anaerobic bacteria* AdenovirusManagement:Azithromycin 1g orally in a single dose or doxycycline 100mg orally twice a day x7 daysAlternative = Erythromycine 500mg four times a day x7 days', 'role': 'assistant'}]