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. 2021 Nov 25;602(7896):300–306. doi: 10.1038/s41586-021-04266-9

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© The Author(s) 2021

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 1 — a, Phylogenetic tree of the B.1.617 lineage. Scale bar, 0.0002 substitutions per site. Bootstrap values are indicated by asterisks; **100%, *>70%. The uncollapsed tree is shown in Extended Data Fig. 1. b, c, Epidemic dynamics of the B.1.617 lineage. b, The number of sequences deposited in GISAID per day for India (top), the UK (middle) and the world (bottom). c, The percentages of each lineage deposited per day from India (orange), the UK (blue) and the world (grey). The date on which each variant was first identified is indicated. The raw data are summarized in Supplementary Table 1. d, The proportion of amino acid replacements in the B.1.617 lineage. The top 10 replacements conserved in the S protein of B.1.617 and its sublineages are summarized. The numbers in parentheses indicate the number of sequences included in each panel. The raw data are summarized in Supplementary Table 2.