A huge immunization drive in Nigeria has meant there have been no new cases of polio for more than a year. Immunization cards in hand, mothers wait patiently with their babies at a government clinic in Sumaila District, Kano State. Long lines are now the norm, which is a positive sign.
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Isa contracted polio more than a year ago after receiving just two of the four oral vaccine doses recommended for complete immunity. In Sumalia District alone there are nearly 68,000 children under the age of five all needing multiple immunizations.
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Healthcare workers administer the oral polio vaccine along with routine immunizations at a clinic in Sumaila District. Polio vaccine coverage in the district is an impressive 85%.
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A mark on the finger after a dose of the oral vaccine means another child is covered in Nigeria's fight to eradicate polio. Only one disease has ever been eradicated -- smallpox in 1980.
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CNN's Dr. Sanjay Gupta talks to the Emir of Kano. The Emir has been instrumental in changing people's attitudes toward the vaccine in the northern Nigerian state.