Response of infants to trivalent poliovirus vaccine (Sabin strains).
D000917:Antibody Formation; D002675:Child, Preschool; D006801:Humans; D007112:Immunity, Maternally-Acquired; D007115:Immunization Schedule; D007223:Infant; D011055:Poliovirus Vaccine, Oral / Q000008:administration & dosage
D011055:Poliovirus Vaccine, Oral