title: An immunodeficiency characterized by impaired antibody responses to polysaccharides.
mesh_terms: D000328:Adult; D000907:Antibodies, Bacterial / Q000032:analysis*; D000917:Antibody Formation; D000942:Antigens, Bacterial / Q000276:immunology; D006193:Haemophilus influenzae / Q000276:immunology; D006801:Humans; D017099:IgG Deficiency; D007153:Immunologic Deficiency Syndromes / Q000276:immunology*; D008213:Lymphocyte Activation; D008297:Male; D011135:Polysaccharides, Bacterial / Q000276:immunology*
chemical_list: D000907:Antibodies, Bacterial; D000942:Antigens, Bacterial; D011135:Polysaccharides, Bacterial