The fourth-round national polio vaccination campaign with type two novel Oral Polio Vaccine (nOPV2) marked a milestone reaching over 26 million children in all regions, while in 22 zones in seven regions in Amhara, Oromia, Somali, South Ethiopia, Harari, Dire Dawa and Afar regions co-administered with bivalent oral polio vaccine (bOPV).