Background: Adult formulation tetanus and diphtheria toxoids and acellular pertussis
vaccines (Tdap) have been developed to prevent pertussis in adolescents and adults. There …

Prior study children from a DTaP efficacy trial were recruited at ages 5 and 15 years to
randomized booster trials addressing immunogenicity and reactogenicity; 475 preschool …

BACKGROUND. The incidence of pertussis is increasing, especially in adolescents,
attributed in part to waning of immunity after childhood immunization. Recently licensed in …

Objective: To evaluate the safety and the immunogenicity of a booster dose of recombinant
acellular pertussis vaccine combined with diphtheria and tetanus toxoids (DTaP, Biocine …

At the age of 7–8 years a booster of diphtheria, tetanus, acellular pertussis and polio vaccine
is recommended for children in Norway. In this cross-sectional study we have analysed the …

Pertussis causes substantial morbidity among adolescents and adults, as well as other
persons in contact with affected individuals. In the context of widespread childhood …

Background: The combined diphtheria-tetanus-pertussis-hepatitis B-inactivated poliomyelitis-
Haemophilus influenzae conjugate vaccine (DTPa-HBV-IPV/Hib, Infanrix HexaTM …

Background: The epidemiology of pertussis is changing, with a clear increase in the number
of cases diagnosed in adolescents and adults. This development has spurred studies and …

We assessed the immunogenicity and safety of a three-dose primary vaccination schedule
with the combined diphtheria-tetanus-acellular pertussis-inactivated poliovirus/Haemophilus …

Persistence of antibodies after a single dose of Tdap vaccine (tetanus, diphtheria, and 5-
component acellular pertussis vaccine) was evaluated in a follow-up study of adolescents …