Reassuringly, it found that infection rates within schools were slightly lower than the surrounding borough — probably a consequence of symptomatic pupils remaining at home.
The study of more than 12,000 pupils and staff also found that those in secondary schools had a slightly higher infection rate than those in primaries but the difference was not “statistically significant”.
The findings, from the second phase of a study by the Office of National Statistics, Public Health England and the London School of Hygiene and Tropical Medicine, effectively justifies the decision last Friday not to prioritise teachers in the second stage of the Covid vaccine roll-out.
The Government has announced that from today families with school-age children will be offered Covid-19 tests which they can use at home. Up to 32 million lateral flow tests will be sent by post to parents every week.
This is in addition to testing that will be carried out in secondary schools when they reopen to all pupils next Monday.