| 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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Person typing on a computer

Leniolisib approved for treating ultrarare APDS 1 and 2

Students in a classroom

PI education kit for schools

Project ECHO. Health worker with patient

Project ECHO clinician series: Signs and symptoms of PI

IDF video

Lunch & Learn: What is chimerism?

Healing the trauma of a life-changing PI diagnosis

Healing the trauma of a life-changing PI diagnosis

laptop

Prophylactic antibiotics and PI

Person typing on a computer

Why and how to collect a family medical history

Project ECHO. Health worker with patient

Project ECHO clinician series: Immune system basics

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Undiagnosed episode 1: "The caretaker"

Listen to podcast

Patient-informed continuing education course on PI wins award

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

P: 410-321-6647