In this article there are a couple links to more detailed info. one specifically from “Wired”
https://www.theblaze.com/news/groundbreaking-study-makes-case-for-students-returning-to-school-shows-kids-rarely-spread-covid“ In fact, the study found that schools do not become virus hotspots once they reopen. According to the study, "the dynamics of virus spreading have been overestimated," CNBC reported.
Prof. Reinhard Berner, the head of pediatric medicine at Dresden University Hospital and a leader of the study, said the study proves "the opposite" of the claim that schools could be super-spreaders of the virus.
"Children act more as a brake on infection," Berner said. "Not every infection that reaches them is passed on."
Researchers in Iceland and Europe have similarly concluded that children do not easily transmit COVID-19.”