This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Misc., Subject name: Microbiology
Herpangina is caused by 
Select and explain. 
A. Cox-sackie virus A, B. Echovirus 18, C. echovirus 16, D. poliovirus
A: Cox-sackie virus A
Answer: A: Cox-sackie virus A 
Explanation: (A) Cox-sackie virus A # Herpangia:> It is a coxsackie viral infection mostly affecting children. To begin with, multiple small vesicles appear on the faucial pillars, tonsils, soft palate and uvula.> They rupture to form ulcers which are usually 2-4 mm in size, have a yellow base and red areola around them. They seldom persist beyond one week.