There are more than 350 primary immunodeficiency diseases recognized by the World Health Organization. Read more to learn about each specific disease type.

Antibody Deficiencies

• Agammaglobulinemia: X-Linked and Autosomal Recessive
• Common Variable Immune Deficiency
• IgG Subclass Deficiency
• Selective IgA Deficiency
• Specific Antibody Deficiency
• Transient Hypogammaglobulinemia of Infancy
• Other Antibody Deficiency Disorders

Cellular Immunodeficiencies

• Severe Combined Immune Deficiency and Combined Immune Deficiency
• Wiskott-Aldrich Syndrome
• Hyper IgM Syndromes
• Ataxia Telangiectasia
• DiGeorge Syndrome
• Other Primary Cellular Immunodeficiencies

Innate Immune Disorders

• Chronic Granulomatous Disease and Other Phagocytic Cell Disorders
• Hyper IgE Syndrome
• Complement Deficiencies
• Innate Immune Defects
• NEMO Deficiency Syndrome

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.