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': 'Which of the following is not true about Japanese encephalitis? \nSelect and explain. \nA. About 80% of the patients are children below 5 years of age, B. In epdidemics, cases scatter with no more than 1-2 pe village, C. Ove disease to unparrent cases ratio is 1:100, D. Bite from infected mosquito alwasy leads to the disease', 'role': 'user'}, {'content': 'Answer: D \nExplanation: <p> Not all individuals bitten by infected mosquitoes develop disease. Reference:Park&;s textbook of preventive and social medicine,K.Park,23rd edition,page no:286. <\\p>', 'role': 'assistant'}]