کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2402932 | 1102870 | 2012 | 4 صفحه PDF | دانلود رایگان |
The duration of functional activity of group B streptococcal (GBS) glycoconjugate vaccine-induced capsular polysaccharide-specific (CPS) IgG was evaluated among healthy adult responders. Opsonophagocytic activity declined significantly from a 4-week post-immunization peak, but substantial functional activity, exceeding 1 log10 reduction in GBS cfu/mL, was retained at 18 months to 2 years post-immunization for each GBS type assessed. The persistence of functional antibody activity when GBS CPS-specific IgG concentrations decline, although remaining significantly higher than pre-immunization levels, suggests that long-term protection may be expected from candidate GBS glycoconjugates administered to this population.
► Antibody responses persist 18–24 months after receipt of GBS glycoconjugate vaccines.
► Substantial functional activity against GBS persisted 18–24 months after immunization.
► Robust killing of GBS persisted despite a decline in antibody concentrations.
Journal: Vaccine - Volume 30, Issue 28, 13 June 2012, Pages 4123–4126