Immunogenicity of the group A and group C meningococcal polysaccharides in children.

Antibody Formation Antigen-Antibody Reactions Antigens, Bacterial Blood Bactericidal Activity Carbon Isotopes Child Child, Preschool Female Fluorescent Antibody Technique Hemagglutination Tests Humans Immunoglobulin A Immunoglobulin G Immunoglobulin M Infant Male Nasopharynx/microbiology Neisseria meningitidis/classification,immunology,isolation & purification Polysaccharides, Bacterial Tritium

Antigens, Bacterial Carbon Isotopes Immunoglobulin A Immunoglobulin G Immunoglobulin M Polysaccharides, Bacterial Tritium