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When Answers Matter: Living With CTLA-4 Deficiency
For many families living with primary immunodeficiency (PI), answers don’t come easily. Symptoms can appear slowly, change over time, or affect multiple systems in the body—making diagnosis a long and frustrating journey. Vivianne’s story is one example of how persistence, connection, and the right care can make all the difference. Vivianne lives with CTLA-4 Deficiency, a rare primary immunodeficiency that affects the immune system’s ability to regulate itself. Rather than si

Sunshine the Bear
Jan 8


A Second Chance for Simon: Living with NEMO Deficiency Syndrome
When Simon was born, there was no immediate sign that anything was wrong. But at just 11 days old, he was hospitalized with a high fever...

Sunshine the Bear
Sep 5, 2025


Yellow Bear Foundation Opens New Immunology Clinic in Peoria, Illinois
Peoria, IL — The Yellow Bear Foundation is proud to announce the official opening of the Yellow Bear Foundation Office of Immunology &...

Sunshine the Bear
Aug 17, 2025


A Night at the Casino: Glitz, Giving, and a Game-Changing Announcement
We are opening a brand-new medical office in Peoria through a powerful partnership with Midwest Allergy Sinus Asthma SC!

Sunshine the Bear
May 12, 2025


Tiny Warrior, Big Victory: Ava’s Journey with SCID
Some heroes wear capes. Others wear hospital bracelets and a brave smile. When Ava was born, her parents had no idea they’d be navigating...

Sunshine the Bear
May 7, 2025


Smiling Through the Storm: Laura’s Life with Hyper IgE Syndrome
If you ever meet Laura Zamora, you’ll notice something right away—her joy. It’s not performative. It’s not forced. It’s the kind of joy...

Sunshine the Bear
Apr 15, 2025


Tessa’s Journey with Wiskott-Aldrich Syndrome
When Tessa Decker stepped onto the stage at the Arnold Sports Festival, she didn’t expect to win. It was her first time competing in pole...

Sunshine the Bear
Mar 22, 2025
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