Background Exploring factors that affect immune responses to immunizations in infants born
to women immunized with tetanus-diphtheria-acellular-pertussis (Tdap) in pregnancy …

Background Immunization with tetanus-diphtheria-acellular pertussis (Tdap) vaccine in
pregnancy is increasingly recommended. We determined the effect of Tdap immunization in …

Abstract Introduction. In England, antenatal pertussis immunization using a tetanus/low-dose
diphtheria/5-component acellular-pertussis/inactivated-polio (TdaP5/IPV) vaccine was …

Background. Maternal immunization against pertussis is currently recommended after the
26th gestational week (GW). Data on the optimal timing of maternal immunization are …

Background Maternal vaccines against pertussis are not yet recommended in the
developing world. Besides unclear burden estimates, another concern is that transplacental …

Background The blunting effect of pertussis immunization during pregnancy on infant
antibody responses induced by whole-cell pertussis (wP) vaccination is not well-defined …

Immunization during pregnancy (IP) against pertussis is recommended in many countries to
protect infants. Although maternal antibodies can influence the infants' antibody responses …

Background Pertussis immunization during pregnancy results in high pertussis antibody
concentrations in young infants but may interfere with infant immune responses to post-natal …

Abstract Background Kinetics of Tdap-induced maternally-derived antibodies in infants are
poorly understood. Pre-Tdap era data suggest that maternal pertussis antibodies in infants …

Background: Optimal timing of gestational tetanus-diphtheria-acellular pertussis (Tdap)
vaccination is not well-defined. No well-established specific anti-pertussis antibody level …