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: Microbiology
[{'content': 'Emergence or resurgence seen in which of the following organisms - \nSelect and explain. \nA. Poliovirus, B. Measles virus, C. Nipah virus, D. All', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Nipah virus", 'role': 'assistant'}]