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
Most common viruses isolated from herpangina are: 
Select and explain. 
A. CVA, B. CVB, C. Echoviruses, D. EV71
A: CVA
Answer: A: CVA 
Explanation: The word herpangina derives from herpes, meaning “vesicular eruption,” and angina, meaning “inﬂammation of the throat.” 
CVA (Coxsackievirus A) (serotypes 1–10, 16, and 22) are the most common viruses isolated from this disease. 
But CVB1–5, 91,102 echoviruses, and EV71 have also been identiﬁed in this condition.