The more you understand about primary immunodeficiency (PI), the better you can manage it. Learn about PI 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), these resources will help you advance the field. Get details on surveys, grants, and clinical trials.
Walk & Community Days are an opportunity for communities across the nation to gather and raise funds for individuals with compromised immune systems. These impactful, enlightening, family-friendly events are inclusive and welcome to all supporters.
Your participation helps create real impact for immunocompromised individuals and their families. Registration is open.
📅 Saturday, August 29
📍 Milwaukee County Zoo
📅 Saturday, September 12
📍 Philadelphia Zoo
📅 Saturday, September 26
📍 Franklin Park Zoo
Due to severe weather, the in-person Boston Walk has been canceled.
📅 Saturday, October 17
📍 Woodland Park Zoo
Donate your time to our Walks 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 and Community Days 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 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 2026 Walk and Community Days
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