Dr. Stacy Norton was only 7 years old when her mother died of colon cancer, one of several family members struck by aggressive tumors at unusually young ages. Decades later, Norton rolled up her sleeve to help test if a new kind of vaccine might p...


Dr. Stacy Norton was only 7 years old when her mother died of colon cancer, one of several family members struck by aggressive tumors at unusually young ages. Decades later, Norton rolled up her sleeve to help test if a new kind of vaccine might protect her and her own children from cancer.