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 language | English |
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Journal | Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin |
Volume | 27 |
Issue number | 10 |
Number of pages | 7 |
ISSN | 1025-496X |
DOIs | |
Publication status | Published - 2022 |
- COVID-19/epidemiology, Denmark/epidemiology, Humans, Molecular Epidemiology, Phylogeny, SARS-CoV-2/genetics
Research areas
ID: 301455374