COVID-19 self-test kits, at Great Academy Ashton, as the school prepares for its reopening on March 8 after the latest lockdown curb the spread of coronavirus, in Ashton-Under-Lyne, England, Thursday, March 4, 2021. The school for approximately 1300 pupils aged 11 to 16 in Greater Manchester will have to conduct around 450 tests per day on pupils and staff in the first 2 weeks after the return of students on Monday. (AP Photo Jon Super)