Department of Error

Ramasamy MN, Minassian AM, Ewer KJ, et al. Safety and immunogenicity of ChAdOx1 nCoV-19 vaccine administered in a prime-boost regimen in young and old adults (COV002): a single-blind, randomised, controlled, phase 2/3 trial. Lancet 2020; 396: 1979–93—In the Summary of this Article, the third sentence of the Background section should have read “We have reported the immunogenicity of a novel chimpanzee adenovirus-vectored vaccine, ChAdOx1 nCoV-19 (AZD1222), in young adults…”, and in the fifth paragraph of the Introduction, the third sentence should have read “ChAdOx1 nCoV-19 (AZD1222) is a replication-defective chimpanzee adenovirus-vectored vaccine…”. In the Procedures section, the location of Symbiosis should have been “Stirling, UK”, and the appendix has been updated. These corrections have been made to the online version as of Dec 17, 2020, and the printed version is correct.