AADC: Gene therapy hope for Wigan girl with rare 'infant Parkinson's'

Six-year-old Hallie has a rare genetic condition that leaves her "trapped inside her own body".

Hallie, from Wigan, is the only female in the UK with Aromatic L-Amino Acid Decarboxylase (AADC) deficiency, often described as infant Parkinson's disease.

Her mum Lucie Campbell hopes a new gene therapy - currently only available in Poland - can help.