new covid-19 variant b.1.1.529 (omicron). handwritten on a scratched sign. coronavirus on the background of flag of

529 2019 africa african background banner care concept concern corona coronavirus cov covid covid19 design drawing element epidemic escape flag graphic handwritten health icon illustration infection information interest lineage monitoring mutant mutated mutation national ncov new pandemic potential rsa sars scratched sign south spike stamp stemp sublineages symbol variant variation vector virus omicron