Fig. 3From: COVID-19 vaccines: their effectiveness against the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and its emerging variantsSARS-CoV-2 variants of concern (VOC). The amino acid changes have been shown in all the VOC which have been compared with the genome sequence of the spike (S) protein of the original SARS-CoV-2 strain from Wuhan, China. NTD N-terminal domain, RBD receptor binding domain, FP fusion peptide domain, HR1 Heptad repeat 1, HR2 Heptad repeat 2, TM transmembrane domain, CTD C terminal domainBack to article page