Chasing Down Polio Polio is on the ropes. Thanks to vigorous vaccination efforts around the world, there are only three countries left where polio is endemic: Nigeria, Afghanistan and Pakistan. NPR looks at how these nations are fighting to wipe out the virus, once and for all.
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Chasing Down Polio

To wipe out polio from earth, health workers must stop it in Nigeria, Pakistan and Afghanistan.

A Yemeni child receives a polio vaccine in the capital city of Sanaa. The Yemen government launched an immunization campaign last month in response to the polio outbreak in neighboring Somalia. Mohammed Huwais/AFP/Getty Images hide caption

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Mohammed Huwais/AFP/Getty Images

Polio Eradication Suffers A Setback As Somali Outbreak Worsens

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Health workers transport the polio vaccine by donkey in southeastern Pakistan. Asad Zaidi/Courtesy of UNICEF Pakistan. hide caption

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Asad Zaidi/Courtesy of UNICEF Pakistan.

Sahya Idriss, a service provider at the health clinic in Minjibir, carries a vial of the polio vaccine. David Gilkey/NPR hide caption

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David Gilkey/NPR