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Spatial growth rate of emerging SARS-CoV-2 lineages in England, September 2020-December 2021.

Published version
Peer-reviewed

Type

Article

Change log

Authors

Smallman-Raynor, MR  ORCID logo  https://orcid.org/0000-0002-0942-7209
Cliff, AD 
COVID-19 Genomics UK (COG-UK) Consortium 

Abstract

This paper uses a robust method of spatial epidemiological analysis to assess the spatial growth rate of multiple lineages of SARS-CoV-2 in the local authority areas of England, September 2020-December 2021. Using the genomic surveillance records of the COVID-19 Genomics UK (COG-UK) Consortium, the analysis identifies a substantial (7.6-fold) difference in the average rate of spatial growth of 37 sample lineages, from the slowest (Delta AY.4.3) to the fastest (Omicron BA.1). Spatial growth of the Omicron (B.1.1.529 and BA) variant was found to be 2.81× faster than the Delta (B.1.617.2 and AY) variant and 3.76× faster than the Alpha (B.1.1.7 and Q) variant. In addition to AY.4.2 (a designated variant under investigation, VUI-21OCT-01), three Delta sublineages (AY.43, AY.98 and AY.120) were found to display a statistically faster rate of spatial growth than the parent lineage and would seem to merit further investigation. We suggest that the monitoring of spatial growth rates is a potentially valuable adjunct to outbreak response procedures for emerging SARS-CoV-2 variants in a defined population.

Description

Funder: Medical Research Council


Funder: Wellcome Trust

Keywords

COVD-19, England, SARS-CoV-2, geography, spatial analysis, COVID-19, Disease Outbreaks, England, Humans, SARS-CoV-2

Journal Title

Epidemiol Infect

Conference Name

Journal ISSN

0950-2688
1469-4409

Volume Title

150

Publisher

Cambridge University Press (CUP)
Sponsorship
Medical Research Council (MC_PC_19027)
MRC (MC_PC_19027)