Table 3.
Dates for the most recent common ancestor (MRCA) of all gene segments.
| Gene segment | Node date | Lower bound | Higher bound |
|---|---|---|---|
| PB2 | 13 February 2021 | 6 March 2017 | 24 April 2021 |
| PB1 | 4 January 2021 | 30 August 2020 | 17 April 2021 |
| PA | 22 February 2021 | 12 September 2020 | 24 April 2021 |
| NS | 18 January 2021 | 5 April 2020 | 2 June 2021 |
| NP | 31 August 2020 | 25 August 2018 | 23 April 2021 |
| NA | 5 April 2021 | 27 February 2021 | 24 April 2021 |
| HA | 20 August 2021 | 17 June 2021 | 19 October 2021 |
| MP | 8 August 2021 | 18 April 2021 | 29 November 2021 |