Six years ago, Marilee Killpack gave birth to a baby boy. That baby boy was diagnosed with Wiskott-Aldrich syndrome, a life-threatening genetic syndrome that affects just one in 250,000 children and is only symptomatic in boys. The life expectancy was 3-5 years. There was, however, one possible way to save his life: he could receive a bone marrow transplant and his 7-year-old brother was a perfect match.
