Effectiveness of Meningococcal B Vaccine against Endemic Hypervirulent<i>Neisseria</i><i>meningitidis</i>W Strain, England

Abstract

Serum samples from children immunized with a meningococcal serogroup B vaccine demonstrated potent serum bactericidal antibody activity against the hypervirulent Neisseria meningitidis serogroup W strain circulating in England. The recent introduction of this vaccine into the United Kingdom national immunization program should also help protect infants against this endemic strain.