1. World Health Organization. Coronavirus disease (COVID-19) pandemic (2021). https://www.who.int/emergencies/diseases/novel-coronavirus-2019.
2. Thompson, R. N., Hill, E. M. & Gog, J. R. SARS-CoV-2 incidence and vaccine escape. Lancet Infect. Dis. 21, 913–914 (2021).
3. Rambaut, A. et al. A dynamic nomenclature proposal for SARS-CoV-2 lineages to assist genomic epidemiology. Nat. Microbiol. 5, 1403–1407 (2020).
4. World Health Organization. Tracking SARS-CoV-2 variants (2021). https://www.who.int/en/activities/tracking-SARS-CoV-2-variants/.
5. Report written by: Andrew Rambaut, Nick Loman, Oliver Pybus, Wendy Barclay, Jeff Barrett, Alesandro Carabelli, Tom Connor, Tom Peacock, David L Robertson, Erik Volz, on behalf of COVID-19 Genomics Consortium UK (CoG-UK). Preliminary genomic characterisation of an emergent SARS-CoV-2 lineage in the UK defined by a novel set of spike mutations (2020). https://virological.org/t/preliminary-genomic-characterisation-of-an-emergent-sars-cov-2-lineage-in-the-uk-defined-by-a-novel-set-of-spike-mutations/563.