Koen AL, Izu A, Baillie V, Kwatra G, et al. Efficacy of primary series AZD1222 (ChAdOx1 nCoV-19) vaccination against SARS-CoV-2 variants of concern: Final analysis of a randomized, placebo-controlled, phase 1b/2 study in South African adults (COV005). Vaccine 2023 Apr 27:S0264-410X(23)00483-8. doi: 10.1016/j.vaccine.2023.
PMID: 37149443