In February, 2010, a 6 pound, 14 ounce baby boy was born. They named him Seth.
There was a problem, however. After several months of exhibiting symptoms including vomiting and high temperatures with no clear explanation, his doctors finally figured out what was wrong: Seth was born with a rare disorder called severe combined immunodeficiency (SCID) that affects his immune system, and makes him more susceptible to infections.
As his mom wrote on her blog about Seth, he wouldn't live until his second birthday unless he got a bone marrow transplant. While he waited for a donor, the baby was put on an oscillator, had a stroke and kept puncturing his lungs. Still, he fought.
Seth finally received a bone marrow transplant eight months after his birth on November 5th, 2010.
But his story doesn't end there. At five years old, and still without a properly working immune system, Seth will need a second bone marrow transplant, which will give him a chance to really live his life outside of his anti-infection bubble.
This Friday, March 27, people around the world will #WearYellowForSeth, his favorite color, all thanks to a video he made from his room at The Great North Children's Hospital in Newcastle, England, a sterile room he's been confined to most of his life.
"He had no contact with other children until he was 2-and-a-half," his dad told the Daily Mail.
In it, he asks people around the world to wear yellow in his honor. And hopes it will spread awareness about the disease.
But if you can't donate, don't worry. Just wear yellow for Seth.