As obviously people are struggling to get a test.
My 5yo started with a cough Tuesday, it became a continuous cough yesterday. School told me I could still send her sibling in 
A friends school (she is a TA) is asking for anyone with any symptoms - even a cold - to stay off until it clears obviously the 3 main symptoms need to be tested
My sister's school (she is a lunch time supervisor) seem to have zero policy in place and she said kids are coughing and sneezing all over the place.
Without the ability to rule it out, my 5yo cough is going to have us all in quarantine for most of winter.