Coverage in opposition to symptomatic an infection with delta (B.1.617.2) and omicron (B.1.1.529) BA.1 and BA.2 SARS-CoV-2 variants after earlier an infection and vaccination in youngsters in England, August, 2021–March, 2022: a countrywide, observational, test-negative, case-control find out about


Young people have a decrease chance of serious or deadly COVID-19 than adults.


  • Ladhani SN
  • Amin-Chowdhury Z
  • Davies HG
  • et al.
COVID-19 in youngsters: research of the primary pandemic height in England.