I believe the same to be true with at least elementary schools. It's previously been stated that kids under 10 do not have the receptors to spread the disease. Many elementary kids are testing positive after, I believe, contracting the disease from family members. These kids aren't sick or really showing symptoms. I assume that a family member begins to show signs, gets the rest of the family tested and finds out the kid has it as well. I have not heard of any outbreaks among kids at elementary schools and I think it's because they can't or have a much more difficult time spreading the disease.