<qa>  What is the dose of azithromycin at months 1, 4 and 7?Monthly follow-up will be conducted within FSW communities, alternating with clinic visits where cervical samples will be collected. Study drugs azithromycin 1 g and ciprofloxacin 500 mg, and their identical placebos will be distributed every month according to a predefined schedule: directly-observed intake of azithromycin at months 1, 4 and 7, and ciprofloxacin at months 2, 3, 5, 6, 8 and 9. 