This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Virology, Subject name: Microbiology
Encephalitis is cuased by - 
Select and explain. 
A. HSV-1, B. EBV, C. Infectious mononucleosis, D. CMV
A: HSV-1
Answer: A: HSV-1 
Explanation: HSV encephalitis though rare is the most common sporadic acute viral encephalitis in most pas of the world REF:ANATHANARAYAN AND PANIKER'S TEXTBOOK OF MICROBIOLOGY 8TH EDITION PAGE NO:469