Recurrent infection and deficiency of complement.
D000328:Adult; D003165:Complement System Proteins; D004485:Eczema / Q000209:etiology*; D006801:Humans; D007153:Immunologic Deficiency Syndromes / Q000150:complications*; D007223:Infant; D007713:Klinefelter Syndrome / Q000209:etiology*
D003165:Complement System Proteins