In kindergartens it's 1/3rd less sick days [1], schools is 20% less [2]. That's the most recent I'm aware of. [1] https://yle.fi/a/74-20062381 https://yle.fi/a

In kindergartens it's 1/3rd less sick days [1], schools is 20% less [2]. That's the most recent I'm aware of. [1] https://yle.fi/a/74-20062381 https://yle.fi/a/74-20062381 [2] https://www.newscientist.com/article/2398713-schools-cut-covid-19-sick-days-by-20-per-cent-using-hepa-air-filters/ https://www.newscientist.com/article/2398713-schools-cut-cov...