title: Three cases of meningococcal infection in a family, associated with a deficient immune response.
mesh_terms: D000293:Adolescent; D000328:Adult; D000907:Antibodies, Bacterial; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007075:Immunoglobulin M; D007153:Immunologic Deficiency Syndromes / Q000150:complications*; D007223:Infant; D008297:Male; D008581:Meningitis / Q000150:complications; D008589:Meningococcal Infections / Q000188:drug therapy / Q000235:genetics / Q000276:immunology*; D012293:Rifampin / Q000627:therapeutic use; D013411:Sulfadiazine / Q000627:therapeutic use
chemical_list: D000907:Antibodies, Bacterial; D007075:Immunoglobulin M; D013411:Sulfadiazine; D012293:Rifampin