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: Pathology
[{'content': 'All spread by feco-oral route EXCEPT: March 2013 \nSelect and explain. \nA. HBV, B. HBV, C. HEV, D. Typhoid', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. B i.e. HBVHBV spread by parenteral, sexual contact or by pefinatal route', 'role': 'assistant'}]