One of the most important #COVID19 controversies: Should we reopen schools? Just out is a piece that reviews everything we know: the many outbreaks, the age gradient, distancing, masks, testing, contact tracing...
https://www.sciencemag.org/news/2020/07/school-openings-across-globe-suggest-ways-keep-coronavirus-bay-despite-outbreaks by @jcouzin @GretchenVogel1 @MeaganWeiland

The controversy extends to colleges
Based on modeling, a preprint today shows that frequent (every 2-3 days) testing surveillance, even w/ sensitivity 70%, could help control outbreaks, promote safe reopening
https://www.medrxiv.org/content/10.1101/2020.07.06.20147702v1.full.pdf
@RWalensky and colleagues
via @antonioregalado

Something tells me the @CDCgov revised guidelines about reopening schools will have nothing to do with the evidence reviewed here.
It's a big challenge and risk even in countries who have performed well in the pandemic. That wouldn't be the US