title: Sero-conversion following DPT immunization.
mesh_terms: D002675:Child, Preschool; D004166:Diphtheria Antitoxin / Q000032:analysis*; D006801:Humans; D007114:Immunization; D007115:Immunization Schedule; D007223:Infant; D013743:Tetanus Antitoxin / Q000032:analysis*
chemical_list: D004166:Diphtheria Antitoxin; D013743:Tetanus Antitoxin