She suffered from a rare condition, where she had been battling a degenerative brain disorder called the Batten Disease CLN6. What is this rare condition and how many people does it affect?

The daughter of producer Gordon Gray and Kristen succumbed in her battle against the rare degenerative brain disorder Batten ...

Eight-year-old Amelia Carroll, of Poynton, Cheshire, has Batten disease, which is incurable and causes seizures, visual impairment and mobility loss. Her brother, 11, who has the same condition ...