"Figure 1: Percentage of secondary school pupils and staff testing positive for current COVID-19 infection ","" "England, 15 to 31 March 2021 (Round 4)","" "","" "Notes","1. Data from 14 local authorities; Bradford is not included as data were not available for both primary and secondary schools. 2. Test results are only available for those who had enrolled in the survey and present in the school building on the day of testing; under current guidance you would expect these participants to have no reported COVID-19 symptoms and not be under current self-isolation guidance. 3. Estimates have been weighted and are representative of the ethnicity, gender and age for all pupils and staff in the sampled local authorities. 4. Staff includes all employees working in the school for example, teachers, teaching assistants, support staff. 5. All results are provisional and subject to revision." "Unit","%" "","" "","Percent testing positive","Lower 95% confidence interval","Upper 95% confidence interval" "Secondary staff","0.19","0.04","0.58" "Secondary pupils","0.34","0.16","0.63"