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Journal article

Establishment and lineage dynamics of the SARS-CoV-2 epidemic in the UK

Abstract:
The UK’s COVID-19 epidemic during early 2020 was one of world’s largest and unusually well represented by virus genomic sampling. Here we reveal the fine-scale genetic lineage structure of this epidemic through analysis of 50,887 SARS-CoV-2 genomes, including 26,181 from the UK sampled throughout the country’s first wave of infection. Using large-scale phylogenetic analyses, combined with epidemiological and travel data, we quantify the size, spatio-temporal origins and persistence of genetically-distinct UK transmission lineages. Rapid fluctuations in virus importation rates resulted in >1000 lineages; those introduced prior to national lockdown tended to be larger and more dispersed. Lineage importation and regional lineage diversity declined after lockdown, while lineage elimination was size-dependent. We discuss the implications of our genetic perspective on transmission dynamics for COVID-19 epidemiology and control.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1126/science.abf2946

Authors


More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Zoology
Role:
Author
ORCID:
0000-0003-0352-6289


Publisher:
American Association for the Advancement of Science
Journal:
Science More from this journal
Volume:
371
Issue:
6530
Pages:
708-712
Publication date:
2021-01-08
Acceptance date:
2020-12-18
DOI:
EISSN:
1095-9203
ISSN:
0036-8075


Language:
English
Keywords:
Pubs id:
1150148
Local pid:
pubs:1150148
Deposit date:
2020-12-18

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