Neutralizing antibody responses against SARS-CoV-2 wild type and variants following two doses BNT162b2 in SARS-CoV-2 naïve individuals or one dose ChAdOx1 nCoV-19 vaccine in individuals with previous SARS-CoV-2 infection. Neutralizing antibody responses against wild type (A), and variants of concern B.1.1.7 (B), B.1.351 (C), P.1 (D), B.1.617.2 (E). Sample sizes: Two doses BNT162b2 in SARS-CoV-2 naïve individuals (n=65), one dose ChAdOx1 nCoV-19 > 11 mpvx (n=45), one dose ChAdOx1 nCoV-19 < 11 mpvx (n=37). Numbers above each cluster indicate median AU/ml. Lines indicate medians with interquartile ranges. BNT; BNT162b2, ChAd; ChAdOx1 nCoV-19, m;months, vx; vaccination; AU; arbitrary units.