'Miraculous in her averageness': The young girl who could hold the key to curing dementia

Could this young girl help unlock a future where some dorms of dementia is stopped in its tracks?
When Kate and Lachlan Page welcomed their first child Matilda, life couldn't have been better. But at just three months old, Tilly was diagnosed with a cruel condition - childhood dementia.
In this 7NEWS Spotlight special investigation, Host Michael Usher meets the remarkable Tilly who has made medical history, and investigates whether the breakthrough treatment could one day transform the fight against all forms of dementia.
Video Summary
AI GeneratedTilly, a nine-year-old girl, has defied a terminal diagnosis of Sanfilippo syndrome—a severe form of childhood dementia—through a world-first, high-risk experimental gene replacement therapy. Administered at age one, the treatment halted the neurodegenerative process, allowing her to develop normally and providing a critical medical blueprint for treating both childhood and adult dementias.
