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': 'JE virus life cycle in nature run between? \nSelect and explain. \nA. Pigs-Mosquito, B. Cattle-Birds, C. Pigs-Human, D. Birds-Pigs', 'role': 'user'}, {'content': "Answer: A \nExplanation: -Japanese encephalitis virus infect several extra human host, animals and birds. - The basic cycles of transmission are from pig to mosquito. Reference : Park's textbook of preventive and social medicine, 23rd edition, pg no:285 <\\p>", 'role': 'assistant'}]