„Variant: 21K (Omicron)”. covariants.org. CoVariants. 28. 11. 2021. Архивирано из оригинала 28. 11. 2021. г. Приступљено 28. 11. 2021. „Variant 21K (Omicron) appears to have arisen in November 2021, possibly in South Africa.”
Barasch, Nicholas; Iqbal, Jameel; Coombs, Marvin; Kazi, Sofia; Wang-Rodriguez, Jessica; Holodniy, Mark; Gelman, Michael (2021). „Utilization of a SARS-CoV-2 Variant Assay for the Rapid Differentiation of Omicron and Delta”. S2CID245536497. doi:10.1101/2021.12.22.21268195.
„In focus”. gisaid.org. GISAID. 28. 11. 2021. Архивирано из оригинала 21. 1. 2021. г. Приступљено 28. 11. 2021. „The unique mix of spike amino acid changes in Omicron GR/484A (B.1.1.529) is of interest as it comprises several that were previously known to affect receptor binding and antibody escape.”
Barasch, Nicholas; Iqbal, Jameel; Coombs, Marvin; Kazi, Sofia; Wang-Rodriguez, Jessica; Holodniy, Mark; Gelman, Michael (2021). „Utilization of a SARS-CoV-2 Variant Assay for the Rapid Differentiation of Omicron and Delta”. S2CID245536497. doi:10.1101/2021.12.22.21268195.
„In focus”. gisaid.org. GISAID. 28. 11. 2021. Архивирано из оригинала 21. 1. 2021. г. Приступљено 28. 11. 2021. „The unique mix of spike amino acid changes in Omicron GR/484A (B.1.1.529) is of interest as it comprises several that were previously known to affect receptor binding and antibody escape.”
„Variant: 21K (Omicron)”. covariants.org. CoVariants. 28. 11. 2021. Архивирано из оригинала 28. 11. 2021. г. Приступљено 28. 11. 2021. „Variant 21K (Omicron) appears to have arisen in November 2021, possibly in South Africa.”