Is it just an infection?
Learn more about these rare, chronic disorders.
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Learn About PI

With more than 350 primary immunodeficiency diseases (PI) recognized by the International Union of Immunological Societies, we have created an online guide to helping you understand them.

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IDF provides educational publications developed by experts. Sign up to receive personalized information at no cost to you.

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Now Open – Registration for IDF Retreats!

Join us this summer for one of two IDF Retreats in Cleveland, OH or St. Augustine, FL! Whether you are an individual with a primary immunodeficiency (PI), a parent, caregiver, sibling or child of a person living with PI, IDF wants you to join us for an IDF Retreat in 2018.

IDF Walk for Primary Immunodeficiency

IDF Walk for Primary Immunodeficiency, held in cities across the country, helps create better lives for those living with PI, and fund vital programs and resources.

IDF 2019 National Conference

The IDF National Conference is a platform for all facets of the PI community. From physicians to nurses to specialized life management experts, individuals and families are presented with an unsurpassed opportunity to network with those on the cutting edge of research and treatment.

IDF Calendar of Events
Find an IDF event in your area.
Need Help Navigating Health Insurance?

Our Patient Insurance Center provides information regarding insurance issues, helpful resources and other possible sources of assistance.

IDF Videos: Hear from Others, Learn from Experts

Access all IDF's video channels, including stories from people living with PI and presentations from Healthcare Professionals.

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