Surveillance systems to track progress toward polio eradication — Worldwide, 2014–2015

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2016

This report presents poliovirus surveillance data from 2014 and 2015, focusing on the 20 countries in the African Region and six in the Eastern Mediterranean Region that reported a WPV or circulating VDPV (cVDPV) case during 2011–2015, including Guinea, Liberia, and Sierra Leone, which were most affected by the 2014–2015 Ebola virus disease (Ebola) outbreak.