This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Communicable diseases, Subject name: Social & Preventive Medicine
[{'content': 'Antibiotic treatment of choice for treating cholera in an adult is a single dose of - \nSelect and explain. \nA. Tetracycline, B. Contrimoxazole, C. Doxycycline, D. Furazolidone', 'role': 'user'}, {'content': "Answer: C \nExplanation: - a single oral dose of doxycycline 300mg for adults and 6mg/kg for children under 15 years has been proved effective for chemoprophylaxis for cholera. Reference : Park's textbook of preventive and social medicine, 23rd edition, pg no:233 <\\p>", 'role': 'assistant'}]