Almost nine in 10 secondary schools in England had no coronavirus cases after they reopened, official figures suggest.
Surveillance data showed only nine of 80 schools surveyed had spotted one infected pupil or staff member in the fortnight ending March 31. Four saw at least two cases, according to the Office for National Statistics report.
Almost 10,000 secondary teachers and pupils were swabbed for the study, which is carried out regularly to track the spread of the disease in schools.
Just 0.34 per cent of pupils tested positive compared to 1.2 per cent in December, when Covid was spreading rapidly in the community. Only one in every 500 teachers were infected in the last round of testing, down from one in 60 before Christmas.