World health organization

10 facts on polio eradication

A Pakistani mother, holding her small child.
WHO/Anna-Lea Kahn

There are just 2 countries which have never stopped transmission of polio

The 2 countries are Afghanistan and Pakistan. They face a range of challenges such as insecurity, weak health systems and poor sanitation. Polio can spread from these 'endemic' countries to infect children in other countries with less-than-adequate vaccination.

© WHO. All rights reserved.