Immunization of Pregnant Women with a Polysaccharide Vaccine of Group B Streptococcus

Abstract
Immunization of pregnant women with a polysaccharide vaccine of group B streptococcus is a promising strategy for the prevention of perinatal infections caused by group B streptococci. To explore the feasibility of this strategy, we vaccinated 40 pregnant women at a mean gestation of 31 weeks with a single 50-μg dose of the Type III capsular polysaccharide of group B streptococcus.