"A decade after the world's original deadline for eradicating polio, the most tenacious bastions of the crippling virus - Nigeria and India - have recently shown remarkable progress in halting its spread, giving even some of the antipolio campaign's severest doubters hope that it may yet largely achieve its goal," the New York Times reports in a story looking at developments in the two countries that are helping drive down the number of polio cases there... 
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