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': 'Most common viruses isolated from herpangina are: \nSelect and explain. \nA. CVA, B. CVB, C. Echoviruses, D. EV71', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The word herpangina derives from herpes, meaning “vesicular eruption,” and angina, meaning\xa0“inﬂammation of the throat.”\xa0\nCVA (Coxsackievirus A) (serotypes 1–10, 16, and 22) are the most\xa0common viruses isolated from this disease.\xa0\nBut CVB1–5, 91,102 echoviruses, and EV71 have also been identiﬁed in this condition.', 'role': 'assistant'}]