Background: In the United States, diphtheria-tetanus-acellular pertussis (DTaP) and
inactivated poliovirus (IPV) booster vaccinations are recommended for children 4–6 years of …

Background. We estimated the vaccine effectiveness (VE) of tetanus-diphtheria-acellular
pertussis vaccine (Tdap) for preventing pertussis among adolescents during a statewide …

Background. Many adult immunization schedules recommend that tetanus and diphtheria
vaccination be performed every 10 years. In light of current epidemiological trends of …

Introduction Routine infant primary series and toddler booster vaccination are associated
with waning of antibody levels over time, which can lead to an increased incidence of …

Although tetanus and diphtheria have become rare in developed countries, pertussis is still
endemic in some developed countries. These are vaccine-preventable diseases and …

To evaluate the safety and immunogenicity of a diphtheria, tetanus, acellular pertussis and
Haemophilus infuenzae Type b (DTaP/Hib) combination vaccine first developed by a …

BACKGROUND: Tetanus toxoid, reduced diphtheria toxoid, and acellular pertussis (Tdap)
vaccine was not licensed for use in adults aged≥ 65 years due to lack of sufficient efficacy …

The tetanus, diphtheria, and acellular pertussis vaccine (Tdap) is recommended for all
adults in both Canada and the United States. There are few data on the proportion of …

Background The combination of whole-cell pertussis (wP) antigens with established
diphtheria (D), tetanus (T), hepatitis B (HB), Haemophilus influenzae type b (Hib), and …

Summary On June 10, 2005, a tetanus toxoid, reduced diphtheria toxoid and acellular
pertussis vaccine (Tdap) formulated for use in adults and adolescents was licensed in the …