Abstract
We studied the immunogenicity of an acellular pertussis vaccine composed of genetically detoxified pertussis toxin (PT-9K/129G), filamentous haemagglutinin, and a 69-kilodalton protein, pertactin, in 30 children aged 12 to 24 months and in 80 infants aged 2 to 4 months. A significant increase of the neutralizing titer and of the titers against pertussis toxin, filamentous hemagglutinin, and pertactin, as determined by enzyme-linked immunosorbent assay, was achieved after three doses of vaccine in all the children; a significant increase of these antibody titers was obtained in 100%, 96.1%, 93.5%, and 98.7% of the infants, respectively.
MeSH terms
-
Adhesins, Bacterial*
-
Antibodies, Bacterial / blood
-
Antigens, Bacterial / immunology*
-
Bacterial Outer Membrane Proteins / immunology*
-
Bordetella pertussis / immunology*
-
Child, Preschool
-
Drug Evaluation
-
Hemagglutinins / immunology*
-
Humans
-
Immunization Schedule
-
Immunoglobulin G / blood
-
Infant
-
Neutralization Tests
-
Pertussis Toxin*
-
Pertussis Vaccine / administration & dosage
-
Pertussis Vaccine / immunology*
-
Time Factors
-
Vaccines, Inactivated / administration & dosage
-
Vaccines, Inactivated / immunology
-
Virulence Factors, Bordetella / immunology*
Substances
-
Adhesins, Bacterial
-
Antibodies, Bacterial
-
Antigens, Bacterial
-
Bacterial Outer Membrane Proteins
-
Hemagglutinins
-
Immunoglobulin G
-
Pertussis Vaccine
-
Vaccines, Inactivated
-
Virulence Factors, Bordetella
-
filamentous hemagglutinin adhesin, Bordetella pertussis
-
pertactin
-
Pertussis Toxin