While much of the world became free of polio in the '60s and an eradication campaign launched in 1988 has cut the yearly cases down to a few hundred, there are countries like India yet to see the disease eradicated completely.
While much of the world became free of polio in the '60s and an eradication campaign launched in 1988 has cut the yearly cases down to a few hundred, there are countries like India yet to see the disease eradicated completely.