Rethinking the Polio Endgame

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Science  06 Feb 2009:
Vol. 323, Issue 5915, pp. 705
DOI: 10.1126/science.323.5915.705

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One of the toughest conundrums for the long-running Global Polio Eradication Initiative has been whether and when it would be safe to stop vaccinating once they deem the virus gone. Now, the thinking is undergoing a major shift.