title: Serum antibody levels after immunization with trivalent oral poliovirus vaccine.
abstract: The antibody titres to the polioviruses after three doses of trivalent oral poliovirus vaccine were assessed in 77 Coloured children aged 3-9 months. Neutralizing antibody titres of 1 in 10 or greater to all three types were found in 59 (77%) of all children. The remaining 18 children lacked demonstrable antibody to one or more of the polioviruses. Antibody to types 1 and 3 was most commonly lacking. The possible reasons for the failure of vaccination in so many children is discussed. Studies of the effect of further doses of vaccine on serum antibody levels are recommended.
mesh_terms: D000906:Antibodies / Q000032:analysis*; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D007115:Immunization Schedule; D007223:Infant; D008297:Male; D011055:Poliovirus Vaccine, Oral / Q000008:administration & dosage / Q000276:immunology*; D013997:Time Factors
chemical_list: D000906:Antibodies; D011055:Poliovirus Vaccine, Oral