Austin sisters diagnosed with genetic disorder known as childhood Alzheimer's

Belle and Abby are working to make memories at a young age while a genetic disorder aims to steal them. Belle is just six-years-old and has an important job of being Abby's big sister who is 21 months. This year Belle was diagnosed with Niemann Pick Type C-1. Not long after that, Abby was tested. She is a-symptomatic at this point.

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