"Figure 7: Over one in four secondary school pupils have had two or more infections","" "Number of infections per pupil in state-funded secondary schools, England, up to 31 March 2022","" "","" "Notes","1. Test and Trace data cannot be used to estimate the true proportion of pupils that have had a COVID-19 infection." "Unit","%" "","" "Infection","No infection","One infection","Two infections","Three or more infections" "20 Dec 2020","90.5","9.5","0","0" "16 May 2021","70.5","29.1","0.4","0" "20 Dec 2021","51.9","36.5","10.6","1" "31 Mar 2022","30.6","43.7","20.2","5.4"