Voysey M., Clemens S.A.C., Madhi S.A., Weckx L.Y., Folegatti P.M., Aley P.K., Angus B., Baillie V.L., Barnabas S.L., Bhorat Q.E., Bibi S., Briner C., Cicconi P., Collins A.M., Colin-Jones R., Cutland C.L., Darton T.C., Dheda K., Duncan C.J.A., Emary K.R.W., Ewer K.J., Fairlie L., Faust S.N., Feng S., Ferreira D.M., Finn A., Goodman A.L., Green C.M., Green C.A., Heath P.T., Hill C., Hill H., Hirsch I., Hodgson S.H.C., Izu A., Jackson S., Jenkin D., Joe C.C.D., Kerridge S., Koen A., Kwatra G., Lazarus R., Lawrie A.M., Lelliott A., Libri V., Lillie P.J., Mallory R., Mendes A.V.A., Milan E.P., Minassian A.M., Mcgregor A., Morrison H., Mujadidi Y.F., Nana A., O’reilly P.J., Padayachee S.D., Pittella A., Plested E., Pollock K.M., Ramasamy M.N., Rhead S., Schwarzbold A.V., Singh N., Smith A., Song R., Snape M.D., Sprinz E., Sutherland R.K., Tarrant R., Thomson E.C., Török M.E., Toshner M., Turner D.P.J., Vekemans J., Villafana T.L., Watson M.E.E., Williams C.J., Douglas A.D., Hill A.V.S., Lambe T., Gilbert S.C., Pollard A.J., Aban M., Abayomi F., Abeyskera K., Aboagye J., Adam M., Adams K., Adamson J., Adelaja Y.A., Adewetan G., Adlou S., Ahmed K., Akhalwaya Y., Akhalwaya S., Alcock A., Ali A., Allen E.R., Allen L., and Almeida T.C.D.S.C. 2021. Safety and efficacy of the ChAdOx1 nCoV-19 vaccine (AZD1222) against SARS-CoV-2: an interim analysis of four randomised controlled trials in Brazil, South Africa, and the UK. Lancet, 397: 99–111.