Mom of 7-year-old with 'childhood dementia' shares story to fight for a cure l GMA

Haidyn was born with Sanfilippo syndrome, a rare genetic disorder that causes her to lose her ability to talk, walk and eat.


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Haidyn Sanfilippo childhood cure dementia disorder fight genetic gma p_cmsid=2494279 p_vid=news-87133833 rare syndrome