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.
IDF Walk for PI is an opportunity for communities across the nation to gather and raise funds for and awareness of primary immunodeficiency (PI). These fun, enlightening, family-friendly events are open to all and even include rewarding incentives, which you can view here.
Make a difference this year! Our 2025 season offers multiple ways to get involved. Form a team, join a team, walk individually, or donate. If you have questions, contact us at walk@primaryimmune.org.
Milwaukee Zoo
August 02, 2025
Six Flags St. Louis
August 16, 2025
Franklin Park Zoo
September 13, 2025
Philadelphia Zoo
September 13, 2025
Woodlands Zoo
October 18, 2025
ZooTampa at Lowry Park
November 01, 2025
San Antonio Zoo
November 15, 2025
Coast to Coast Walk for PI (Virtual)
Zoom event at 12 PM ET
December 13, 2025
Donate your time to Walk for PI to support immunocompromised individuals. Volunteers can help promote the event, or be there on the ground, helping with logistics, directions, or registration.
Participants who raise $100 or more will earn a special commemorative Walk for PI t-shirt recognizing their commitment to supporting the PI community. Additional fundraising incentives are available for those who go above and beyond, such as the special Order of the Zebra honor for individuals who raise $1,000 or more. These opportunities offer exciting rewards for participants who help make a significant impact through their fundraising efforts.
Connect with the national Walk for PI community on Facebook. Through the public group, you can ask questions, meet others, invite friends and family to join, and more.
Thank you to the following national partners for the Walk for Primary Immunodeficiency
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