| Immune Deficiency Foundation

Understanding primary immunodeficiency (PI)
Understanding PI
The more you understand about primary immunodeficiency (PI), the better you can live with the disease or support others in your life with PI. Learn more about PI, including the various diagnoses and treatment options.
Learn more about PI
Living with PI
Living with PI
Living with primary immunodeficiency (PI) can be challenging, but you’re not alone—many people with PI lead full and active lives. With the right support and resources, you can, too.
Learn more about living with PI
Get involved
Get involved
Be a hero for those with PI. Change lives by promoting primary immunodeficiency (PI) awareness and taking action in your community through advocacy, donating, volunteering, or fundraising.
Get involved today
Advancing research and clinical care
Advancing research and clinical care
Whether you’re a clinician, researcher, or an individual with primary immunodeficiency (PI), IDF has resources to help you advance the field. Get details on surveys, grants, and clinical trials.
Learn more about research

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Chapter 15: Diseases of Immune Dysregulation: STAT1 and STAT3 Gain of Function

Download this chapter from the IDF Patient & Family Handbook for Primary Immunodeficiency Diseases, Sixth Edition.

Chapter 14: CTLA-4 Haploinsufficiency and LBRA Deficiency

Download this chapter from the IDF Patient & Family Handbook for Primary Immunodeficiency Diseases, Sixth Edition.

Chapter 13: Immune Dysregulation, Polyendocrinopathy, Enteropathy, X-linked (IPEX) Syndrome

Download this chapter from the IDF Patient & Family Handbook for Primary Immunodeficiency Diseases, Sixth Edition.

Chapter 12: Ataxia-Telangiectasia (A-T) and Related Disorders

Download this chapter from the IDF Patient & Family Handbook for Primary Immunodeficiency Diseases, Sixth Edition.

Chapter 11: Wiskott-Aldrich Syndrome

Download this chapter from the IDF Patient & Family Handbook for Primary Immunodeficiency Diseases, Sixth Edition.

Chapter 10: DiGeorge Syndrome

Download this chapter from the IDF Patient & Family Handbook for Primary Immunodeficiency Diseases, Sixth Edition.

Chapter 9: Combined Immune Deficiency

Download this chapter from the IDF Patient & Family Handbook for Primary Immunodeficiency Diseases, Sixth Edition.

Chapter 8: Classic Severe Combined Immunodeficiency

Download this chapter from the IDF Patient & Family Handbook for Primary Immunodeficiency Diseases, Sixth Edition.

Chapter 7: Transient Hypogammaglobulin-emia of Infancy

Download this chapter from the IDF Patient & Family Handbook for Primary Immunodeficiency Diseases, Sixth Edition.

Immune Deficiency Foundation
7550 Teague Road, Suite 220
Hanover, Maryland 21076

P: 410-321-6647