This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Genital Tract Infections (Too hot to handle!), Subject name: Gynaecology & Obstetrics
[{'content': 'A young female presented with vaginal discharge. Endocervical biopsy revealed chlamydial antigen. Treatment given should be \nSelect and explain. \nA. Doxycycline + metronidazole, B. Azithromycin + contact tracing, C. Fluconazole + Azithromycin, D. Ampicillin + Probenecid', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Treatment of Chlamydial infection: Azithromycin 1 g orally as a single doseor Doxycycline (100 mg bid for 7 days) Contact tracing, avoidance of sex or barrier contraceptive is necessary to avoid recurrence. Note: out of the given options, both azithromycin and doxycycline (not metronidazole) can be used for treatment of chlamydia, however since contact tracing is equally impoant, option 2 is preferred. Chlamydia infection :most common cause of tubal block in India', 'role': 'assistant'}]