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': 'True about kala-azar- \nSelect and explain. \nA. More common in female than male, B. Eliminated from India, C. Non-human reservoirs are present, D. Incubation period is 1-3 months', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Kala-azar There are varity of animal reservoirs, eg., dogs, jackals, foxes, rodents, and other mammals. Males are affected twice as often as females. In India, Kala-azar is endemic in 52 districts. Incubation period, generally 1 to 4 months ; range is 10 days to 2 yrs. Ref:PARK&;S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICINE 23rd edition page: 305', 'role': 'assistant'}]