Public schools the next town over from me have just been shut down as a parent has tested positive. I've read that children remain broadly asymptomatic and so are great carriers for the illness - very much in keeping with my suspicion that children are all evil.
The number of cases are gonna explode as municipalities roll out better testing methods. Not just in the US, but essentially everywhere. Scary thought.
Personally, I'm gonna steer clear from visiting the grandparents for a few weeks at least. Not worth the risk IMO. Sorry yiayia, it's phone time or no time!