“Let me be real frank to the Dallas County residents, the fact that we have one confirmed case, there may be another case that is a close associate with this particular patient,” he said in a Wednesday interview with WFAA. “... So this is real. There should be a concern, but it’s contained to the specific family members and close friends at this moment.”
He wouldn't have mentioned the close friends (with an s) if the second case was a family member. Ok, the friendS could be living in the house but if not then this thing could have been spread far and wide.