This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
[{'content': 'The following are live attenuated vacciness, except ? \nSelect and explain. \nA. BCG, B. Oral typhoid, C. Measles, D. Peussis', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Peussis", 'role': 'assistant'}]