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Use Psychology Today's online search to find mental health providers, including therapists, psychiatrists, treatment centers, and support groups near your home or online. Note that the Immune Deficiency Foundation provides this information for awareness purposes and does not endorse the organization or any of the listed providers.

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How plasma is collected and used

June 03, 2026
Headshots of Katherine Lontok, Ph.D. and Paula Henao, M.D. Text reads: "Primary immunodeficiency in 2026: New practice parameters, genetic testing, and what's changed for patients".

Primary immunodeficiency in 2026: New practice parameters, genetic testing, and what's changed for patients

May 27, 2026
Mark Ballow Tease

Consulting medical director Dr. Mark Ballow steps down

May 26, 2026

Read "A Zebra Tale"

This illustrated storybook written for children—young and old—living with primary immunodeficiency (PI) and their families provides hope and encouragement. Order or download for free.

Read "Our Immune System"

This illustrated non-fiction book helps kids (of all ages!) understand how the immune system works and how primary immunodeficiency (PI) can affect it. Order or download for free.

Get our kid's kit

If you're a kid with PI, ask a parent or caregiver to order our newly diagnosed kit for kids—it's free! You'll get two kid's books, a comic, and helpful resources for your whole family.

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