The Yellow Bear Foundation

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The Yellow Bear Foundation The Yellow Bear Foundation is a non-profit organization empowering communities to spread awareness and fund research of Primary Immunodeficiency (PI).

We hope to help create a future with improvement of diagnosis, treatment, and quality of life. Charlotte "Bear" Lavin's Story

**Medical Professionals names removed for privacy**

PI has recently become a personal issue to my family since my daughter, Charlotte β€œBear” Lavin, was diagnosed with Specific Antibody Deficiency with normal IgG (SAD) in November 2016. Charlotte’s diagnosis took over four yearsβ€”with a lot of testing and failed treatmentsβ€”to get the proper diagnosis. Charlotte first began showing signs of the disease at only two months old, when she was diagnosed with pneumonia. Moving forward, Charlotte would recover from an illness and shortly after, contract another illness. As she approached one year old, we felt like the amount of illnesses (including two pneumonias) was not β€œnormal.” We were getting very frustrated with doctors saying β€œit’s just kid stuff.” We decided to move practices. Dr. ** became Charlotte’s pediatrician. A nurse called me shortly after the appointment was made and told me Dr. ** would see Charlotte before her new patient appointment, because he knew we were nervous about her illnesses. Throughout the many doctors and specialist visits, Dr. ** has been Charlotte’s constant and consistent advocate since she was one. In November 2016, Charlotte finally received a proper diagnosisβ€”SADβ€”from Dr.**. We tried a new prophylactic antibiotic that failed quicker than any treatment thus far. February 2017, Dr. **, Dr. **, and Dr. ** all agreed it was time for IVIg. Since there are no local pediatric immunologist, Dr. ** and Dr. ** at Bleeding & Clotting Disorder Institute agreed to take Charlotte on as a patient. They worked with OSF Children’s Hospital of Illinois to have her approved for her first infusion within three days. Since March 2017, Charlotte has been a completely different child. She has not needed antibiotic or steroids once since beginning IVIg. The first time she went back to Dr. ** and **, NP, was May 19. They were shocked to see how much different she looked. Her coloring was better and she no longer carried the dark circles under her eyes. Dr. ** came into the room and took one look and had the biggest smile on his face. It brought tears to my eyes, because I feel this man is solely responsible for how my child is today. Without the referral to Chicago and Dr. **’s consistent searching, Charlotte would not be where she is today. She would not be playing, going to school, be on a cheerleading team, and living a normal kid life. Her three hour infusion, once a month has done that for her. She is no longer on a special diet (gluten free) and she is no longer on daily asthma medication. Charlotte and I also began to look at photos of other kids and adults getting infusions. Here, we were connected with Immune Deficiency Foundation (IDF). I contacted them shortly after and we decided we wanted to help. Primary Immunodeficiency needs help. We need to spread awareness of over 300 rare, chronic disorders, so that these patients can receive a quicker and more efficient diagnosis. Even after diagnosis, I’ve had a doctor tell me that SAD isn’t a real condition. It’s not fair to the patients or their families fighting this battle every day. Please help kids, like Charlotte, and adults fight their battle. Let’s spread awareness about these disorders; we need to create a better future for PI.

10/12/2026

Let's visit the Yellow Bear office! β˜€οΈπŸ»πŸ’›

The Yellow Bear Foundation Office of Immunology and Research is helping make specialized immunology care more accessible to patients and families right here in Central Illinois! πŸ₯ Located at 6812 N. Knoxville Avenue in Peoria, this office represents something incredibly important to our mission: bringing life-changing care closer to home for families navigating primary immunodeficiency (PI) and other immune issues.

Through the generosity of our amazing sponsors & donors and the partnerships we've helped build, we're proud to be making a meaningful difference in access to care throughout the Greater Peoria area and beyond. πŸ‘

And while we just stopped by for a little sunshine and a peek around, there's plenty more we plan to share about the work happening here soon... stay tuned! β˜€οΈ

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10/10/2026

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Fall family fun, with a spooky twist. πŸŽƒπŸ‚The Screaming Pumpkin Run is almost here, and we love this event because it brin...
10/07/2026

Fall family fun, with a spooky twist. πŸŽƒπŸ‚

The Screaming Pumpkin Run is almost here, and we love this event because it brings runners, walkers, families, costumes, and community together in support of the Yellow Bear Foundation’s work surrounding primary immunodeficiency awareness and access to immunology care right here in Central Illinois. πŸ’›

Bring the kids, grab your costumes, cheer on your peeps, or join the 2 Mile Walk/Run for a family-friendly way to be part of one of Peoria’s favorite fall traditions! πŸ‘

The race takes runners through Springdale Cemetery, starting at Lower Glen Oak Park near the corner of Abington St. and NE Perry Ave in Peoria, IL.

Tickets are available on our website! 🎟️ Sign up ASAP... prices increase after Oct. 16th! ⏳

Once you start, there’s no turning back... πŸ‘»

SPONSOR SPOTLIGHT πŸ’›πŸ‘‰ Connor Co. πŸ‘ˆWe're shining the spotlight on an incredible annual sponsor of Yellow Bear Foundation: ...
10/06/2026

SPONSOR SPOTLIGHT πŸ’›

πŸ‘‰ Connor Co. πŸ‘ˆ

We're shining the spotlight on an incredible annual sponsor of Yellow Bear Foundation: Connor Co. 🐻✨

For more than 90 years, Connor Co. has been a family-owned business serving communities across Illinois and beyond. We're grateful they've chosen to bring that same commitment to community to Yellow Bear Foundation year after year.

Annual sponsors like Connor Co. help make our work possibleβ€”raising awareness about primary immunodeficiency, supporting patients and families, and helping provide access to life-changing immunology care right here in Central Illinois.

Thank you, Connor Co., for investing in a brighter tomorrow for families facing PI! πŸ’›

Interested in becoming an annual sponsor? Your support creates an impact that lasts all year long. Learn more on our website!

10/01/2026

So much work goes into making The Screaming Pumpkin experience happen every year. πŸ‘πŸŽƒ Now that October is officially here, we're deep in the behind-the-scenes fun: prepping, planning, organizing, and getting ready for one of our favorite spooky nights of the year! πŸ’› Here are a few fun BTS snippets as we get closer to race night.

Are you signed up yet? πŸ‘» Link in bio for Oct. 24th!

Every big journey starts somewhere. πŸ’› Keep moving forward, one step at a time. 🐻✨
09/26/2026

Every big journey starts somewhere. πŸ’› Keep moving forward, one step at a time. 🐻✨

πŸŽƒ The Screaming Pumpkin run is spooky on the outside, but all heart underneath. πŸ’›Every runner, walker, volunteer, costum...
09/23/2026

πŸŽƒ The Screaming Pumpkin run is spooky on the outside, but all heart underneath. πŸ’›

Every runner, walker, volunteer, costume, and cheer from the sidelines helps support Yellow Bear's work for families impacted by primary immunodeficiency right here in Central Illinois.

Proceeds from the race help fund PI awareness, local support, and access to immunology care, making it possible for more families to find answers, resources, and care close to home. πŸ‘

So yes, it's pumpkins, costumes, and spooky miles through Springdale Cemetery... but it's also a community showing up for something that truly matters. 🧑

Join us Saturday, October 24th! πŸƒ

🎟️ ScreamingPumpkinRun.com 🎟️

Once you start, there's no turning back... πŸ‘»

09/20/2026

Run it if you dare... πŸŽƒπŸ‘»

The legendary Screaming Pumpkin returns Saturday, October 24th at Springdale Cemetery in Peoria, IL.

A chilling night run, a historic course, and a fall tradition that brings runners, walkers, and families with kiddos of all ages together for one unforgettable October night.

Now is the time to grab your spot! ⏳

SPONSOR SPOTLIGHT πŸ’›βœ¨ Fleming Electric Inc. ✨We're shining a little extra light on one of the businesses helping power th...
09/19/2026

SPONSOR SPOTLIGHT πŸ’›

✨ Fleming Electric Inc. ✨

We're shining a little extra light on one of the businesses helping power the work of Yellow Bear Foundation! ⚑🐻

As an annual sponsor, Fleming Electric's continued support helps us raise awareness about primary immunodeficiency, support patients and families, and expand access to life-changing immunology care right here in Central Illinois. πŸ”Œ

We're incredibly grateful for local businesses like Fleming Electric that choose to stand behind our mission year-round. Their generosity helps us keep building a brighter tomorrow for families facing PI. πŸ’›

Thank you, Fleming Electric, for being part of the Yellow Bear family!

Interested in becoming an annual sponsor? Your support can make a lasting impact by helping more families find answers, access specialized care, and know they have a community behind them. 🧸

Learn more about supporting Yellow Bear Foundation at yellowbearfoundation.org.

X-linked lymphoproliferative disease type 1 (XLP1) is a rare, inherited primary immunodeficiency that affects the body's...
09/10/2026

X-linked lymphoproliferative disease type 1 (XLP1) is a rare, inherited primary immunodeficiency that affects the body's ability to properly control certain immune responses. It is caused by changes in the SH2D1A gene, which plays an important role in how immune cells communicate and respond to infection.

People with XLP1 can be especially vulnerable to Epstein-Barr virus (EBV). In some individuals, an EBV infection can trigger a dangerously overactive immune response, including hemophagocytic lymphohistiocytosis (HLH). XLP1 can also be associated with recurrent infections, low antibody levels, and an increased risk of lymphoma.

Because symptoms can vary widely, diagnosis is not always straightforward. Some individuals may appear relatively healthy until a significant infection or immune complication reveals that something deeper is going on.

Awareness matters. Recognizing unusual infection patterns, immune dysregulation, and family history can help lead to earlier testing, diagnosis, and specialized care.

At Yellow Bear Foundation, we're proud to be part of creating a brighter tomorrow for families facing primary immunodeficiency. Through awareness, education, advocacy, and access to specialized immunology care right here in Peoria, we're helping more families find answers, receive the care they need, and move forward with greater hope. πŸ’›πŸ§Έ

*️⃣ Immune Deficiency Foundation

Address

Peoria, IL
61614

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