From the Centers for Disease Control and Prevention. Progress toward global eradication of poliomyelitis, 1988-1993.
D000349:Africa / Q000453:epidemiology; D000569:Americas / Q000453:epidemiology; D001208:Asia / Q000453:epidemiology; D005060:Europe / Q000453:epidemiology; D014943:Global Health; D006801:Humans; D017589:Immunization Programs; D011051:Poliomyelitis / Q000453:epidemiology / Q000517:prevention & control*; D011055:Poliovirus Vaccine, Oral / Q000008:administration & dosage; D014944:World Health Organization
D011055:Poliovirus Vaccine, Oral