Enterovirus 71 (EV71), also known as Enterovirus A71 (EV-A71), is a virus of the genus Enterovirus in the Picornaviridae family,[1] notable for its role in causing epidemics of severe neurological disease and hand, foot, and mouth disease in children.[2] It was first isolated and characterized from cases of neurological disease in California in 1969.[3][4] Enterovirus 71 infrequently causes polio-like syndrome permanent paralysis.[5]