TY - JOUR
T1 - Molecular epidemiology of the SARS-CoV-2 variant Omicron BA.2 sub-lineage in Denmark, 29 November 2021 to 2 January 2022
AU - Fonager, Jannik
AU - Bennedbæk, Marc
AU - Bager, Peter
AU - Wohlfahrt, Jan
AU - Ellegaard, Kirsten Maren
AU - Ingham, Anna Cäcilia
AU - Edslev, Sofie Marie
AU - Stegger, Marc
AU - Sieber, Raphael Niklaus
AU - Lassauniere, Ria
AU - Fomsgaard, Anders
AU - Lillebaek, Troels
AU - Svarrer, Christina Wiid
AU - Møller, Frederik Trier
AU - Møller, Camilla Holten
AU - Legarth, Rebecca
AU - Sydenham, Thomas Vognbjerg
AU - Steinke, Kat
AU - Paulsen, Sarah Juel
AU - Castruita, José Alfredo Samaniego
AU - Schneider, Uffe Vest
AU - Schouw, Christian Højte
AU - Nielsen, Xiaohui Chen
AU - Overvad, Maria
AU - Nielsen, Rikke Thoft
AU - Marvig, Rasmus L.
AU - Pedersen, Martin Schou
AU - Nielsen, Lene
AU - Nilsson, Line Lynge
AU - Bybjerg-Grauholm, Jonas
AU - Tarpgaard, Irene Harder
AU - Ebsen, Tine Snejbjerg
AU - Lam, Janni Uyen Hoa
AU - Gunalan, Vithiagaran
AU - Rasmussen, Morten
PY - 2022
Y1 - 2022
N2 - 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.
AB - 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.
KW - COVID-19/epidemiology
KW - Denmark/epidemiology
KW - Humans
KW - Molecular Epidemiology
KW - Phylogeny
KW - SARS-CoV-2/genetics
U2 - 10.2807/1560-7917.ES.2022.27.10.2200181
DO - 10.2807/1560-7917.ES.2022.27.10.2200181
M3 - Journal article
C2 - 35272746
VL - 27
JO - Eurosurveillance
JF - Eurosurveillance
SN - 1025-496X
IS - 10
ER -