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08-12-2016, 12:30 AM
The discovery dashed the hopes of global health authorities who had hoped to declare the continent polio-free soon.
More... (http://www.nytimes.com/2016/08/12/health/polio-nigeria.html?partner=rss&emc=rss)
More... (http://www.nytimes.com/2016/08/12/health/polio-nigeria.html?partner=rss&emc=rss)