Here is one link from last night.
I remember seeing some other articles about a month ago about the obseration that people not showing virus symptoms often are less apt to infect others, saying that it might mean that this is why it hasn’t spread from children to teachers and their parents in the case of COVID-19. I’ll try to find one or more of those.
Another article about it, citing another study.
https://theconversation.com/5-reasons-its-safe-for-kids-to-go-back-to-school-137064