title: Chronic meningococcemia. Possible pathogenic role of IgM deficiency.
mesh_terms: D000293:Adolescent; D002908:Chronic Disease; D006801:Humans; D007075:Immunoglobulin M / Q000032:analysis*; D007153:Immunologic Deficiency Syndromes / Q000150:complications*; D008297:Male; D008589:Meningococcal Infections / Q000150:complications*; D018805:Sepsis / Q000209:etiology*
chemical_list: D007075:Immunoglobulin M