This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
[{'content': 'In cholera epidemic which step should be first taken \nSelect and explain. \nA. Vaccination to all individuals immediately, B. Primary chemoprophylaxis, C. Cure with tetracycline, D. Safe water supply and sanitation', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Cholera is an acute diarrheal disease caused by Vibrio cholerae.\n\nI.P.-1-2 days\nFirst step in epidemic of cholera: Verification of diagnosis\nFirst line treatment of choice: water and electrolyte replacement.\nIn the given question, safe water supply and sanitation should be the 1 st step to decrease mortality from cholera. Also know\nStool appearance of cholera: “Rice watery stool • Chemoprophylaxis of cholera: Tetracycline 500mg BID for 5 days.\n\nDrug of choice for cholera:\n\nAdults: Doxycycline 300 mg stat.\nChildren: Cotrimoxazole 5mg/kg BID for 3 days\nPregnant female: Furazolidone 100mg QID for 3 days', 'role': 'assistant'}]