Polio outbreaks in Indonesia and Madagascar have been officially declared over after intensive vaccination campaigns. Nigeria has carried out one of its largest vaccination campaigns ever, reaching approximately 106 million children.
The world has made significant progress in the fight against polio, reducing the number of cases by a hundredfold since the 1980s. Two of the three serotypes of wild poliovirus have been eradicated. New vaccines and improvements in sanitation and testing will help us overcome the last obstacles.