I'm hearing more talk about these CDC decision trees and I'd like to submit this one that our school district sent us March 13 as justification for why they WANTED to stay open. Please use this far and wide. According to this, I don't think ANY schools in this country should have closed to begin with. Or maybe only a handful.
Link https://www.wcpss.net/cms/lib/NC01911451/Centricity/Domain/4/considerations-for-school-closure-2.pdf
Also attaching images in case this link dies.