Even children who seem to fully recover can develop new muscle pain, weakness, or paralysis as adults, 15 to 40 years later. This is called post-polio syndrome.
Today, despite a worldwide effort to wipe out polio, poliovirus continues to affect children and adults in parts of Asia and Africa.
Polio, short for poliomyelitis, or infantile paralysis, is an infectious disease caused by the . In adults, paralysis occurs in one in 75 cases. In children under five.