Polio: An Elusive Finish Line
The polio virus is almost completely wiped off the face of the earth, thanks to a global effort to exterminate the crippling disease. In 1988, when the Polio Eradication campaign was launched, 350,000 children were paralyzed by polio across 125 countries. Last year, there were only 37 cases reported in three countries: Afghanistan, Pakistan and Nigeria. Most were in Pakistan.