Expanded programme on immunization (EPI). Inclusion of yellow fever vaccine in the EPI.
D002648:Child; D002675:Child, Preschool; D003906:Developing Countries; D005714:Gambia; D006801:Humans; D017589:Immunization Programs / Q000592:standards*; D007115:Immunization Schedule; D007223:Infant; D014611:Vaccination / Q000191:economics / Q000592:standards*; D015004:Yellow Fever / Q000517:prevention & control*