As the Scottish Cons campaign to get them off, the data are clear. Sturgeon has protected thousands of Scots school-children from infection and perhaps long-Covid.
Comparisons are always difficult but according to the ONS, for the week-ending 29 January, 13.1% of 6-12 year-olds and 7.6% of 13-17 year-olds in England, tested positive.
According to Public Health Scotland data for week-ending 8 February, 5.3% of 0-14 year-olds and 6.44% of 15-19 year-olds tested positive.
So, different grouping but, overall, significantly lower infection rates in Scottish schools. The face masks work.