Enterovirus 71 is a type of enterovirus that is usually named after a number, the order of which represents the order in which it was discovered. The virological classification of enteroviruses belongs to the enterovirus group of the picornaviridae. EV 71 is the latest virus discovered in the enterovirus group, which is highly infectious and has a high incidence of disease, especially neurological complications. Enterovirus 71 is the cause of hand-foot and mouth disease in infants and young children. HFMD) is one of the major pathogens.