title: Differences in reactogenicity and antigenicity of acellular and standard pertussis vaccines combined with diphtheria and tetanus in infants.
abstract: Clinical and serological responses of infants to primary immunization with diphtheria-tetanus-pertussis (DTP) vaccine containing components of acellular pertussis vaccine (DTP-AC) were compared in a double-blind study with responses of infants receiving whole-cell DTP vaccine (DTP-WC). Three doses of either DTP-AC containing lymphocytosis-promoting factor (LPF) and filamentous hemagglutinin (FHA) or DTP-WC vaccine were given to infants at two, four, and six months of age. Nineteen infants received DTP-AC vaccine, and 20 infants received DTP-WC vaccine. Significantly more infants who received DTP-WC vaccine manifested fever, swelling, and/or total reactions than did infants who received DTP-AC vaccine. Infants who received DTP-AC vaccine had comparable antibody titers to LPF and significantly higher titers to FHA after three immunizations, as compared with the infants who received DTP-WC vaccine (P less than or equal to .001). The DTP-WC vaccine stimulated higher pertussis agglutination titers (P = .04) than did DTP-AC. The DTP-AC vaccine was immunogenic and significantly less reactogenic in infants than was the currently used DTP-WC vaccine.
mesh_terms: D000907:Antibodies, Bacterial / Q000032:analysis / Q000096:biosynthesis; D001428:Bacterial Vaccines / Q000009:adverse effects; D001886:Bordetella pertussis / Q000276:immunology; D004168:Diphtheria Toxoid / Q000008:administration & dosage; D006388:Hemagglutinins / Q000276:immunology; D006801:Humans; D007223:Infant; D010567:Pertussis Vaccine / Q000008:administration & dosage / Q000009:adverse effects / Q000276:immunology*; D013745:Tetanus Toxoid / Q000008:administration & dosage; D014614:Vaccines, Synthetic / Q000276:immunology
chemical_list: D000907:Antibodies, Bacterial; D001428:Bacterial Vaccines; D004168:Diphtheria Toxoid; D006388:Hemagglutinins; D010567:Pertussis Vaccine; D013745:Tetanus Toxoid; D014614:Vaccines, Synthetic