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J Infect Dis. 1984 Jul;150(1):71-9.

Immune response of infants and children to disseminated infections with Neisseria meningitidis.


Acute- and convalescent-phase sera from 34 children and 10 young adults were studied to determine if, at what age, and to which antigens of Neisseria meningitidis they respond during disseminated disease. Seven children older than two years of age who were infected with group C or Y strains developed significant increases in both binding and bactericidal antibody. Children infected with group B strains infrequently (eight [31%] of 26) had measurable increases in serum antibody to this capsular polysaccharide; response was meager when it did occur, was unrelated to age, and was considerably poorer than that of young adults, of whom 80% responded. Convalescent-phase sera from all children contained bactericidal antibody. Binding capacity for group B polysaccharide accounted for only 35% of the bactericidal activity in convalescent-phase sera of children infected with group B strains. Bactericidal antibody in the sera of children who did not respond to capsular polysaccharides was often to a lipooligosaccharide antigen.

[Indexed for MEDLINE]

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