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': 'The most common cause of sporadic viral encephalitis is : \nSelect and explain. \nA. Japanese B encephalitis, B. Herpes simplex encephalitis, C. HIV encephalitis, D. Rubeola encephalitis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: “The most common virus causing sporadic cases of encephalitis in immunocompetant adult are HSV-1, VZV, EBV and less commonly enterovirus.”\nRemember: Epidemic of encephalitis are caused by Arbovirus which include:\n\nAlphaviruses\nToga viruses\nBunyaviruses', 'role': 'assistant'}]