Dynamics of a national Omicron SARS-CoV-2 epidemic during January 2022 in England

Elliott, Paul and Eales, Oliver and Bodinier, Barbara and Tang, David and Wang, Haowei and Jonnerby, Jakob and Haw, David and Elliott, Joshua and Whitaker, Matthew and Walters, Caroline E and Atchison, Christina and Diggle, Peter J and Page, Andrew J and Trotter, Alexander J and Ashby, Deborah and Barclay, Wendy and Taylor, Graham and Ward, Helen and Darzi, Ara and Cooke, Graham S and Chadeau-Hyam, Marc and Donnelly, Christl A (2022) Dynamics of a national Omicron SARS-CoV-2 epidemic during January 2022 in England. Nature Communications, 13 (1): 4500. ISSN 2041-1723

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Abstract

Rapid transmission of the SARS-CoV-2 Omicron variant has led to record-breaking case incidence rates around the world. Since May 2020, the REal-time Assessment of Community Transmission-1 (REACT-1) study tracked the spread of SARS-CoV-2 infection in England through RT-PCR of self-administered throat and nose swabs from randomly-selected participants aged 5 years and over. In January 2022, we found an overall weighted prevalence of 4.41% (n = 102,174), three-fold higher than in November to December 2021; we sequenced 2,374 (99.2%) Omicron infections (19 BA.2), and only 19 (0.79%) Delta, with a growth rate advantage for BA.2 compared to BA.1 or BA.1.1. Prevalence was decreasing overall (reproduction number R = 0.95, 95% credible interval [CrI], 0.93, 0.97), but increasing in children aged 5 to 17 years (R = 1.13, 95% CrI, 1.09, 1.18). In England during January 2022, we observed unprecedented levels of SARS-CoV-2 infection, especially among children, driven by almost complete replacement of Delta by Omicron. [Abstract copyright: © 2022. The Author(s).]

Item Type:
Journal Article
Journal or Publication Title:
Nature Communications
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/1300/1300
Subjects:
?? england - epidemiologycovid-19 - epidemiologychildspecimen handlinghumanssars-cov-2base sequencegeneral biochemistry,genetics and molecular biologygeneral chemistrygeneral physics and astronomybiochemistry, genetics and molecular biology(all)chemistry(all ??
ID Code:
174698
Deposited By:
Deposited On:
17 Aug 2022 12:20
Refereed?:
Yes
Published?:
Published
Last Modified:
16 Jul 2024 11:53