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. 2022 May 2;185(12):2103–2115.e19. doi: 10.1016/j.cell.2022.04.035

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© 2022 The Author(s)

Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active.

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Figure S1 — Estimated emergence dates of the Omicron lineages, related to Figure 1

(A) Phylodynamics of BA.1 (top), BA.2 (middle), and BA.3 (bottom) sampled up to January 26, 2022, in South Africa. All BA.2 and BA.3 sequences and 200 randomly sampled BA.1 (including 20 BA.1.1) sequences were used. The time-resolved trees were constructed by using BEAST2. The 95% CI of the divergence time is shown for a node with a ≥0.95 posterior value (indicated by an asterisk).

(B) Estimated emergence dates of the Omicron lineages. The 95% CI (error bar) and posterior mean (dot) are shown.