title: A double-blind study comparing an acellular pertussis-component DTP vaccine with a whole-cell pertussis-component DTP vaccine in 18-month-old children.
abstract: An acellular pertussis-component diphtheria-tetanus-pertussis (AC-DTP) vaccine was compared with a currently licensed, whole-cell pertussis-component DTP (WC-DTP) vaccine for reactogenicity and immunogenicity when given as the fourth DTP immunization in sixty 18- to 24-month-old children. Reactions over the first 48 hours were significantly less common in the AC-DTP vaccine recipients, as follows (WC-DTP/AC-DTP): fever, 85%/5%; redness, 70%/12.5%; tenderness, 100%/22.5%; swelling, 35%/10%; fretfulness, 70%/12.5%; anorexia, 35%/2.5%; and vomiting, 10%/0%. Antibody responses to pertussis antigens (agglutinogens, lymphocytosis-promoting factor, and filamentous hemagglutinin), diphtheria toxoid, and tetanus toxoid in AC-DTP vaccine recipients were comparable with those in WC-DTP vaccine recipients. The AC-DTP vaccine evaluated in this trial seems to be as immunogenic as WC-DTP vaccine while being markedly less reactogenic.
mesh_terms: D000373:Agglutinins / Q000032:analysis; D000907:Antibodies, Bacterial / Q000032:analysis; D000917:Antibody Formation; D001886:Bordetella pertussis / Q000276:immunology; D002986:Clinical Trials as Topic; D004168:Diphtheria Toxoid / Q000009:adverse effects / Q000276:immunology*; D004311:Double-Blind Method; D004797:Enzyme-Linked Immunosorbent Assay; D006801:Humans; D007117:Immunization, Secondary; D007223:Infant; D010567:Pertussis Vaccine / Q000009:adverse effects / Q000276:immunology* / Q000592:standards; D013745:Tetanus Toxoid / Q000009:adverse effects / Q000276:immunology*; D014611:Vaccination
chemical_list: D000373:Agglutinins; D000907:Antibodies, Bacterial; D004168:Diphtheria Toxoid; D010567:Pertussis Vaccine; D013745:Tetanus Toxoid