Expanded programme on immunization (EPI). Poliomyelitis eradication.
D002681:China / Q000453:epidemiology; D006801:Humans; D017589:Immunization Programs; D007115:Immunization Schedule; D007117:Immunization, Secondary; D015994:Incidence; D007223:Infant; D011051:Poliomyelitis / Q000453:epidemiology / Q000517:prevention & control*; D011055:Poliovirus Vaccine, Oral; D014944:World Health Organization
D011055:Poliovirus Vaccine, Oral