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  2. SARS-CoV-2 Omicron variant - Wikipedia

    en.wikipedia.org/wiki/SARS-CoV-2_Omicron_variant

    Omicron (B.1.1.529) is a variant of SARS-CoV-2 first reported to the World Health Organization (WHO) by the Network for Genomics Surveillance in South Africa on 24 November 2021.