| 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.
View resource details

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son kisses mother on cheek

Study confirms many X-linked CGD carriers experience symptoms

December 11, 2024

Nurse examining patient with the text "Decoding PI: Unraveling the GI Connection".

Decoding PI: Unraveling the GI connection

December 06, 2024

Bob LeBien and family

Bob LeBien’s leadership a guiding force for IDF and IPOPI

December 04, 2024

Child receiving vaccine

Statement regarding the leadership of the U.S. Department of Health and Human Services

December 02, 2024

Genetics and CVID

Genetic testing can narrow CVID diagnosis

November 21, 2024

Man talks to someone via video chat on his phone.

Sustaining the telehealth revolution

November 18, 2024

Ariana thumbnail

Get Connected Groups expand to meet PI community needs

November 14, 2024

Colemans

Family navigates both CVID and SAD diagnoses

November 07, 2024

Q&A: Antibody deficiencies with Dr. Luke Wall

November 07, 2024

Listen to podcast

thumbnail for Decoding PI: Antibody deficiency

Decoding PI: Antibody deficiencies

November 05, 2024

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

P: 410-321-6647