<prompt> Herpangina is caused byCox-sackie virus AEchovirus 18echovirus 16poliovirus  <response>: 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. 