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. Author manuscript; available in PMC: 2021 Feb 5.
Published in final edited form as: Science. 2020 Dec 10;371(6529):eabe3261. doi: 10.1126/science.abe3261

Table 2.

Major Boston-area lineages identified by lineage-defining mutation.

Lineage Root C20099T G3892T C2416T G105T G28899T
Number of genomes 772 21 77 288 98 34
Epidemiology BHCHP SNF Conference, BHCHP BHCHP
Amino acid substitution ORF1b: A2211V; NSP15: A160V ORF1a: E1209D; NSP3: E391D N: R56I, ORF14: E56*
Median tMRCA (95% HPD) 15 December 2019 (20 November 2019 to 4 January 2020) 4 April 2020 (30 March 2020 to 8 April 2020) 19 March 2020 (13 March 2020 to 23 March 2020) 14 February 2020 (4 February 2020 to 20 February 2020) 10 March 2020 (1 March 2020 to 16 March 2020) 15 March 2020 (4 March 2020 to 21 March 2020)