O'Toole, Á., Pybus, O., Abram, M., Kelly, E. & Rambaut, A. 2022, 'Pango lineage designation and assignment using SARS-CoV-2 spike gene nucleotide sequences', BMC Genomics, 23 , article no: 121 . https://doi.org/10.1186/s12864-022-08358-2