Hand, foot and mouth disease is a communicable disease that commonly affects children, according to the United States Centers for Disease Control and Prevention. The viruses that cause hand, foot and mouth disease are part of the Enterovirus group, which includes polioviruses, coxsackieviruses and echoviruses.
People who have hand, foot and mouth disease have a rash on their hands and feet, notes Mayo Clinic. Sores in the mouth are also possible. Generally, good hygiene prevents hand, foot and mouth disease. Since the disease mainly affects children under 5 years old, teaching proper handwashing methods at an early age is vital.