Expanded programme on immunization. Update: progress towards poliomyelitis eradication, 1993-1994.
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D004484:Ecuador / Q000453:epidemiology; D006801:Humans; D017589:Immunization Programs / Q000706:statistics & numerical data; D007115:Immunization Schedule; D007223:Infant; D008457:Measles / Q000453:epidemiology / Q000517:prevention & control*; D011051:Poliomyelitis / Q000453:epidemiology / Q000517:prevention & control*; D011055:Poliovirus Vaccine, Oral; D011159:Population Surveillance; D014744:Vietnam / Q000453:epidemiology
D011055:Poliovirus Vaccine, Oral