Despite effective infant immunization against pertussis, the disease continues to circulate
due to waning immunity. Booster vaccinations against pertussis beyond infancy are widely …

Despite effective infant immunization against pertussis, the disease continues to circulate
due to waning immunity. Booster vaccinations against pertussis beyond infancy are widely …

A trial to compare the reactogenicity and immunogenicity of a reduced antigen content
diphtheria–tetanus–acellular pertussis (dTpa) vaccine with diphtheria–tetanus–whole-cell …

Objective: To evaluate the safety and reactogenicity of a reduced-antigen-content combined
Diphtheria-Tetanus-Acellular Pertussis (dTpa) vaccine in Indian pre-school children …

Pertussis continues to circulate in Chinese communities and older children, adolescents and
adults are sources of infection for unprotected infants. Two studies conducted in Jiangsu …

Abstract Purpose: Disease caused by Bordetella pertussis is increasingly being identified
among older children and adults in immunized populations, indicating a waning of the …

Background. The recent introduction of acellular pertussis vaccines (Pa) offers the possibility
of booster doses in older children and adults. This can be conveniently accomplished by …

Background: Due to the resurgence of pertussis, many countries have revised the pertussis
immunization schedules and recommended booster doses of pertussis component vaccine …

PURPOSE: Disease caused by Bordetella pertussis is increasingly being identified among
older children and adults in immunized populations, indicating a waning of the vaccine …

OBJECTIVE: The safety of a booster dose of a reduced-antigen-content tetanus–diphtheria–
acellular pertussis (Tdap) vaccine was evaluated in adolescents previously vaccinated with …