Fig. 1

Spike protein amino acid mutations of the Omicron subvariants (BA.1 and BA.2) compared with mutations from the other four variants of concern (VOCs). a Venn diagram noting mutations of Omicron (BA.1) and those of VOCs. b Venn diagram of Omicron (BA.2) mutations compared to ones of VOCs. c Venn diagram of mutations between Omicron (BA.1) and Omicron (BA.2). d Spike protein amino acid mutation counts of Omicron subvariants (BA.1 and BA.2) compared with mutations of VOCs