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The Capital Region of Denmark - a part of Copenhagen University Hospital
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Molecular epidemiology of the SARS-CoV-2 variant Omicron BA.2 sub-lineage in Denmark, 29 November 2021 to 2 January 2022

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Following emergence of the SARS-CoV-2 variant Omicron in November 2021, the dominant BA.1 sub-lineage was replaced by the BA.2 sub-lineage in Denmark. We analysed the first 2,623 BA.2 cases from 29 November 2021 to 2 January 2022. No epidemiological or clinical differences were found between individuals infected with BA.1 versus BA.2. Phylogenetic analyses showed a geographic east-to-west transmission of BA.2 from the Capital Region with clusters expanding after the Christmas holidays. Mutational analysis shows distinct differences between BA.1 and BA.2.

Original languageEnglish
JournalEurosurveillance
Volume27
Issue number10
Pages (from-to)1-7
Number of pages7
ISSN1560-7917
DOIs
Publication statusPublished - 10 Mar 2022

    Research areas

  • COVID-19/epidemiology, Denmark/epidemiology, Humans, Molecular Epidemiology, Phylogeny, SARS-CoV-2/genetics, COVID-19, SARS-CoV-2, variant of concern, Omicron, BA.1, BA.2

ID: 75597510