What mitigation would you recommend?
MiniTheMinx How about what Germany are doing:
"This common framework provided guidelines for a wide range of hygiene measures, wearing of face masks, ventilation and disinfection of classrooms, social distancing rules, separation of groups to facilitate contact tracing and regular testing of teachers and students. Students, teachers and parents showing symptoms related to COVID-19 were not allowed to enter the school perimeter. When new infections were detected, relevant groups were immediately quarantined, with other groups remaining in school and being closely monitored for additional new cases."
We could start with an effective test and trace system, which we were told was essential for the safe re-opening of schools, but we opened without.
We could move onto making sure that all classrooms have windows. And then that those windows open. A national WEAR A VEST campaign to stop parents and kid complaining that it's cold.
Masks.
Marquees/covers on the playgrounds so that kids aren't inside for wet break.
For it to be mandatory (not simply 'where possible') that classrooms are arranged so that teachers are 2m from the kids when teaching. If smaller class sizes are needed to facilitate this, then solutions must be found even if the government needs to pay money for bigger spaces.
Parents to be supported/sanctioned to avoid kids being sent into school with symptoms or when they're supposed to be isolating.
Regular testing in schools.
There are some pretty basic fixes that could be introduced almost immediately. The longer it's left, the more likely more kids will be at home isolating like the 412,000 last week.