Not many children and young adults met before they traveled from all over the world to gather in Houston. They were brought together by a common diagnosis that, until six years ago, was a mystery.
All of them were diagnosed with EBF3-induced developmental ataxia syndrome (HADDS). The neurodevelopmental disorder causes a range of symptoms, including developmental delays and autism-like tendencies. Dr. Hsiao Tuan Chao, a pediatric neurologist and researcher at the Jan and Dan Duncan Institute for Neurological Research, and colleagues identified the disorder in 2016 when she was a postdoctoral research fellow at Baylor College of Medicine.