No one in my immediate or extended family has MS either. We do have autoimmune issues in the family and my endocrinologist told me that the genetic predisposition for me was simply the autoimmune tendency. How it manifests one way or another is entirely different story!

I personally think there's not going to be just one answer fits all but absolutely, this study will definitely be very helpful. There are certainly a lot of people who DO have MS running in the family.