Moreover, the risk of infections with Brazilian lineages of SARS-CoV-2 after ChAdOx1 nCoV-19 vaccine was 0.12 (95% CI [0.02; 0.98]) for B.1.1.33 variant; 0.28 (95% CI [0.14; 0.55]) for B.1.1.28 variant; 0.32 (95% CI [0.22; 0.46]) for P.2 variant and 0.38 (95% CI [0.13; 1.05]) for P.1 variant. This evidence concerns the gene OCA2 and infection.