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': 'Rat is associated with? \nSelect and explain. \nA. Leptospirosis, B. Measles, C. Tetanus, D. Influenza', 'role': 'user'}, {'content': 'Answer: A \nExplanation: 7Leptospirosis affects wild and domestic animals world wide especially rodents such as rats, mice and voles Reference : Park&;s Textbook of preventive and social medicine, 24th edition.Pg no. 309', 'role': 'assistant'}]