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MMWR: Environmental Isolation of Circulating Vaccine-Derived Poliovirus After Interruption of Wild P

Thursday, August 4, 2016   (0 Comments)

In September 2015, more than 1 year after reporting its last wild poliovirus (WPV) case in July 2014 (1), Nigeria was removed from the list of countries with endemic poliovirus transmission,* leaving Afghanistan and Pakistan as the only remaining countries with endemic WPV. 


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