The causative agent of hand, foot and mouth disease is Enterovirus 71 (EV71) and Coxsackie virus A16, which undergoes 4 clinical stages. The disease can cause many dangerous complications such as encephalitis, meningitis, and myocarditis if not treated promptly.

Hand, foot and mouth disease is a contagious disease caused by a virus. The disease has 4 levels. In case a child has level 1 hand, foot and mouth disease, it will not cause dangerous complications. However, active treatment is needed to help the child recover quickly.