Table 1.
Phylogenetic estimates of the time of most recent common ancestor (tMRCA) and daily growth rate.
| SARS-CoV-2 lineage | tMRCA [95% HPD] | Growth rate [95% HPD] |
|---|---|---|
| B.1.1.7 (Alpha) | Sep 10, 2020 [Aug 28–Sep 19, 2020] | 0.091 [0.008–0.202] |
| B.1.617.2 (Delta) | Aug 25, 2020 [Jul 5–Oct 10, 2020] | 0.020 [0.008–0.033] |
| B.1.1.529 (Omicron) | Oct 29, 2021 [Oct 20–Nov 5, 2021] | 0.566 [0.117–1.035] |
| BA.2 (Omicron) | Oct 24, 2021 [Oct 4–Nov 9, 2021] | 0.136 [0.046–0.262] |
| BA.5 (Omicron) | Jan 10, 2022 [Dec 19–Jan 29, 2022] | 0.110 [0.051–0.177] |
| BA.2.75 (Omicron) | Apr 5, 2022 [Mar 11–Apr 23, 2022] | 0.092 [0.037–0.162] |
The values of the SARS-CoV-2 B.1.1.7 (Alpha), B.1.617.2 (Delta), B.1.1.529 (BA.1), BA.2, BA.5, and BA.2.75 (Omicron) lineages. Values are expressed as medians and 95% high posterior density intervals.