Evelyn Villarreal was one of the first children treated, at 8 weeks. Her family, from Centreville, Va., had lost their first child to spinal muscular atrophy at 15 months. Two years later when Evelyn was born a test showed she also had the disease, so the family enrolled her in the gene therapy study at Nationwide Children's Hospital in Columbus, Ohio.

Source: Los Angeles Times May 27, 2019 17:26 UTC