Yeah, plus schools are well known to be flu factories.
Our county has not had a single case of flu. Zero. Not one. Really amazing since essentially all of the COVID testing done in Smallville includes a PCR test for influenza A and B. More testing done than ever before yet zero flus found.
Schools are a very important driver of influenza transmission in the community every year. They seem to have minimal, if any, effect on COVID spread. Mask wearing for 2 -3 weeks during the peak of flu season *could* have an impact on missed work slash school and hospital use during the peak of seasonal flu season.