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With one new polio case this year, Pakistan not declaring victory yet

Saida Baloch, a health worker from Dukki, Pakistan, gives polio drops to a child, April 24, 2018. The country has come tantalizingly close to eradicating the virus in recent years, only to be foiled by instability, mistrust and attacks on vaccinators. (Danial Shah/The New York Times) XNYT30 XNYT30

Polio has persisted in Pakistan and neighboring Afghanistan, where eradication efforts have been repeatedly foiled by ignorance, mistrust and extremist attacks on vaccination teams.

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