There are more than 400 primary immunodeficiencies recognized by the International Union of Immunological Societies.

We will continue to build upon this list as more information becomes available.

• Activated PI3K Delta Syndrome (APDS)
• Agammaglobulinemia: X-Linked and Autosomal Recessive
• Ataxia Telangiectasia
• Chronic Granulomatous Disease (CGD) and Other Phagocytic Cell Disorders
• Chronic Neutropenia
• Common Variable Immune Deficiency (CVID)
• Complement Deficiencies
• Congenital Athymia
• DiGeorge Syndrome
• Hemophagocytic Lymphohistiocytosis (HLH)
• Hyper IgE Syndrome
• Hyper IgM Syndromes
• IgG Subclass Deficiency
• Innate Immune Defects
• Leukocyte Adhesion Deficiency (LAD)
• NEMO Deficiency Syndrome
• Selective IgA Deficiency
• Selective IgM Deficiency
• Severe Combined Immune Deficiency (SCID) and Combined Immune Deficiency
• Specific Antibody Deficiency
• Transient Hypogammaglobulinemia of Infancy
• WHIM Syndrome (Warts, Hypogammaglobulinemia, Infections, and Myelokathexis)
• Wiskott-Aldrich Syndrome
• Other Antibody Deficiency Disorders
• Other Primary Cellular Immunodeficiencies

These pages contain general medical information, which cannot be applied safely to any individual case. Medical knowledge and practice can change rapidly. Therefore, these pages should not be used as substitutes for professional medical advice.