Today's mini been is here! Poliomyelitis - Symptoms and Prevention The word poliomyelitis originates from the Greek word; polio, meaning grey and myelon, meaning marrow. It is an infectious disease caused by the poliovirus, a member of the genus Entero-virus, belonging to the Picornaviridae family. In this video, Dr. Tammy Wang discusses the symptoms, transmission, and vaccination of poliomyelitis. More than 70% of infections in children are asymptomatic. A reminder has a non-specific viral prod