title: Immunogenicity of O-acetyl-negative and -positive polysaccharide vaccines for infections with Neisseria meningitidis group C in infants.
mesh_terms: D000107:Acetylation; D000917:Antibody Formation; D001428:Bacterial Vaccines / Q000276:immunology*; D006801:Humans; D007223:Infant; D008585:Meningitis, Meningococcal / Q000276:immunology*; D009345:Neisseria meningitidis / Q000276:immunology*; D011135:Polysaccharides, Bacterial / Q000276:immunology*
chemical_list: D001428:Bacterial Vaccines; D011135:Polysaccharides, Bacterial