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. 2022 Jun;39:100578. doi: 10.1016/j.epidem.2022.100578

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© 2022 The Authors

This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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Fig. 4 — Phylogeny of B.1.1.7 in Italy. (A) Maximum likelihood tree showing 1097 full-genome SARS-CoV-2 sequences. Branches are colored according to Italian regions; global data is shown in grey. For the five main Italian clusters the proportion of sequences per region is shown as a pie chart. (B) The largest clusters containing all sequences from Guardiagrele is shown enlarged (n = 383). Branches are colored according to the province in Abruzzo. Sequences from Guardiagrele are marked with white. (C) The provinces in Abruzzo and the proportion of sequences from each province in the large cluster. Branch length shows nucleotide substitutions per site.