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.
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.
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.
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.
The IDF Walk for Primary Immunodeficiency (PI), first established in 2013, brings together communities across the nation to gather and raise both funds and awareness for PI and the immunocompromised community in general. Fundraising can be done in teams or individually, and locations vary by year. These events are held at fun locations, are family-friendly, and help engage community members.
Funds raised from these events are used to support research projects focused on the diagnosis and treatment of primary immunodeficiency. Primary immunodeficiencies (PIs), also known as inborn errors of immunity (IEI), are a group of more than 450 rare, chronic conditions in which part of the body's immune system is missing or does not function correctly.
According to the National Institutes of Health (NIH), there are approximately 500,000 individuals in the U.S. with a PI. These conditions are caused by hereditary genetic defects and can affect anyone, regardless of age, gender, or ethnicity. PI can cause infection, malignancy (cancer), allergy, autoimmunity, autoinflammation, or any simultaneous combination of these issues.
Additionally, there is a virtual option (Walk for PI Coast to Coast) for those unable to participate at the announced event locations.
The Walk for PI national sponsors include Takeda, CVS, Amgen Rare Disease, CSL Behring, and Grifols.
The Immune Deficiency Foundation (IDF) is the largest primary immunodeficiency (PI) patient advocacy group in the United States, with 44 years of expertise in primary immunodeficiency. As such, we take pride in helping to connect, engage, and empower families to live longer, stronger, healthier lives. Whether you are looking for subject matter experts on PI (clinicians or patients), information about an upcoming event, or a statement from the organization on a particular topic, we can offer guidance and resources in a variety of areas, including:
A hub of information for journalists interested in writing about the Immune Deficiency Foundation (IDF) with direct links to learn more about IDF, primary immunodeficiency, and those affected.
Learn more about Immune Deficiency Foundation
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The Immune Deficiency Foundation improves the diagnosis, treatment, and quality of life for every person affected by primary immunodeficiency.
We foster a community that is connected, engaged, and empowered through advocacy, education, and research.
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