A single dose of oral ciprofloxacin will be administered using age-based dosing (see Table 1). All doses will be directly observed. Tablets will be administered with water. Children unable to swallow pills will have the tablet crushed and dissolved in sweetened water.Table 1Age-based dosing of ciprofloxacinAgeDose (mg)Formulation≥12 years5001 tablet5–11 years2501 tablet1–4 years125½ tablet (250 mg tablet)3–11 months1002 ml oral suspension (250 mg/5 ml)<3 months751.5 ml oral suspension (250 mg/5 ml)