Is polio a thing of the past? In most of the world, poliomyelitis has been eradicated. But the crippling disease has been endemic to some nations - Pakistan, Afghanistan, Nigeria and India. This week, one nation will be checked off that list. On Friday, India will celebrate a full year since its last reported case of polio, according to the Associated Press.
The polio virus attacks the central nervous system, sometimes causing paralysis, muscular atrophy, deformation and, in some
cases, death. Polio usually infects children in unsanitary conditions. In India, many vaccinated children fell ill with the virus because malnutrition and chronic diarrhea had weakened their bodies.
Keep clicking to see photos of the disease being treated in India, as well as photos of others once affected by polio around the world...