New—Primary school students aged 5-12 now have the highest #COVID19 infection level, even while cases dropping overall. “School re-openings are thought to be the reason why children have become the most infected group”.

Masks, HEPA & ventilation.
https://www.openaccessgovernment.org/covid-infection-level/108127/

2) To be clear, the above report on higher infection rates in kids is from the UK. But they don’t have much school mitigation rules - no national school mask mandates and no indoor air disinfection protocols.

Meanwhile, the CDC has offered safe school air guidance—see thread https://twitter.com/drericding/status/1365678603212648461

3) Important to highlight school buses are risky — we need to ensure all windows are open in buses. https://twitter.com/drericding/status/1365682213052899328