Actually, the talking heads are being rather evasive on the job description of this 2nd case. They won't yet say whether she is a nurse. She may not be a nurse, but rather an orderly or do something else at the hospital.
Again, no news about the family of the original victim. If two hospital staff became infected, then surely some of his family must be as well. If Ebola has an R0 of 2, then it's not supposed to be very easy to get. If this one person infects many, then clearly the R0 we've been told is wrong.