#immunodeficiency  immunological disorder in which some part of the body's immune system is inadequate and resistance to infectious diseases is reduced
  supertype:  immunological_disorder__immunologicaldisorder  a disorder of the immune system
  subtype:  AIDS__acquired_immune_deficiency_syndrome  a serious (often fatal) disease of the immune system transmitted through blood products especially by sexual contact or contaminated needles
  subtype:  agammaglobulinemia  a rare immunological disorder characterized by the virtual absence of gamma globulin in the blood and consequent susceptibility to infection
  subtype:  hypogammaglobulinemia  an abnormally low concentration of gamma globulin in the blood and increased risk of infection

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