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': 'Nipah virus is associated with epidemics of: \nSelect and explain. \nA. Hepatitis, B. Encephalitis, C. Pneumonia, D. All of the above', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Nipah virus is a zoonotic virus that causes outbreaks of fatal encephalitis. Outbreak occurred in West Bengal in 2001 Ref: National Health Programmes in India, J.Kishore, 10th edition pg: 391', 'role': 'assistant'}]