Opal Sandy, second left, who received ground-breaking gene therapy aged 11 months, is pictured with her mother Jo, father James and sister Nora at their home in Eynsham, Oxfordshire. PA
Opal Sandy, second left, who received ground-breaking gene therapy aged 11 months, is pictured with her mother Jo, father James and sister Nora at their home in Eynsham, Oxfordshire. PA