title: Vaccine switch urged for polio endgame.
authors: Ewen
authors: E
authors: Callaway
mesh_terms: D002648:Child; D060740:Disease Eradication / Q000379:methods*; D006801:Humans; D009549:Nigeria / Q000453:epidemiology; D011051:Poliomyelitis / Q000453:epidemiology* / Q000517:prevention & control*; D011054:Poliovirus Vaccine, Inactivated / Q000008:administration & dosage* / Q000191:economics / Q000276:immunology*; D011055:Poliovirus Vaccine, Oral / Q000600:supply & distribution; D014611:Vaccination / Q000706:statistics & numerical data; D014944:World Health Organization
chemical_list: D011054:Poliovirus Vaccine, Inactivated; D011055:Poliovirus Vaccine, Oral