The only cure for Corbyn was a bone marrow transplant from a matching sibling. However, when his sister was born, she was not a match. Corbyn will have to maintain his treatment regimen for the rest of his life. Not the sort of burden you would expect a seven-year old to endure.
His amazing parents recently traveled to China to adopt a brother, Cai, who has the exact same condition as Corbyn! The two brothers will be able keep each other company during their frequent, long, lifesaving transfusion sessions and share a bond of brotherhood along the way.
Corbyn is completely dependent on lifesaving blood, and the brothers remain grateful every day for all the donors who share their power to give them the gift of life.