Immunodeficiency

Immunodeficiency results from a failure or absence of elements of the immune system, including lymphocytes, phagocytes, and complement system. These immunodeficiencies can be either primary, such as Bruton disease or secondary, as the one caused by HIV infection. Primary Immunodeficiency B-cell Deficiencies X- linked Agammaglobulinemia (Bruton disease) Selective Immunoglobulin IgA Deficiencies T-cell Immunodeficiencies Congenital thymic aplasia (DiGeorge syndrome) Chronic Mucocutaneous Candidasis Hyper-IgM syndrome Interleukin-12 receptor deficiency T-cell and B-cell Deficiencies Severe combined immunodeficiency disease (SCID) Wiskott-Aldrich syndrome Immunodeficiency with ataxia-telangiectasia MHC deficiency (Bare leukocyte syndrome) Complement Deficiencies Hereditary angioedema Recurrent infections Autoimmune diseases Phagocyte Deficiencies Chronic granulomatous disease (CGD) Leukocyte adhesion deficiency syndrome Secondary Immunodeficiency Use of Drugs (Steroids) Nutrient Deficiencies Obesity Acquired Immune Deficiency Syndrome (AIDS)