HFMD is often perceived as an illness that only impacts young children, but adults can get hand, foot, and mouth, too. Dispelling the myth that HFMD exclusively affects children is critical, especially since adults may not realize they're carrying the virus and could inadvertently spread it. Find Your Center What Is Hand, Foot, and Mouth Disease? HFMD is a highly contagious viral infection that primarily affects young children, typically those under the age of five. It ...