A World Free of Polio — The Final Steps
Global polio-eradication efforts have led to a dramatic decrease in polio cases, from an estimated 350,000 cases in 125 countries in 1988 to 72 cases in 2015.
Global polio-eradication efforts have led to a dramatic decrease in polio cases, from an estimated 350,000 cases in 125 countries in 1988 to 72 cases in 2015.