title: Lacunar defects in immunity.
mesh_terms: D000375:Aging; D000907:Antibodies, Bacterial / Q000032:analysis; D002675:Child, Preschool; D006193:Haemophilus influenzae / Q000276:immunology; D006801:Humans; D007136:Immunoglobulins / Q000032:analysis; D007153:Immunologic Deficiency Syndromes / Q000175:diagnosis / Q000628:therapy*; D007223:Infant; D011135:Polysaccharides, Bacterial / Q000276:immunology
chemical_list: D000907:Antibodies, Bacterial; D007136:Immunoglobulins; D011135:Polysaccharides, Bacterial