Scaling Lifesaving Interventions Faster: A case study on the accelerated uptake of nOPV2, the first vaccine to receive WHO Emergency Use Listing Thu, 11/18/2021 - 18:44 Widespread administration of oral polio vaccines (OPVs) has resulted in reduced incidence of polio and the eradication of wild poliovirus type 2 and type 31,2. Subscribe to nOPV2