Most schools are shutting down based on the preliminary test that can be done immediately and is 95% accurate. Waiting 10 days for the CDC to confirm before shutting down doesn’t make sense. The virus seems to have an incubation period of 1 - 3 days and last 7 - 10 days.
On Drudge they were saying that the CDC was so backed up that they weren’t even testing all of the samples sent in! Just ones from new regions so they could characterize the spread of the flu.
I imagine this will have Obama calling for nationalization of the testing laboratories to make things better, faster, and so the EVERYONE can know what they have - because the CDC sure isn’t.......oh,....wait....