Update of the tree with the addition of the two USA cases (Washington and Illinois).
Figure 1 | Maximum likelihood tree of nCoV2019 genomes constructed using PhyML [1]. The tree is rooted using the oldest sequence but this is an arbitrary choice. The scale bar shows the length of branch that represents 1 nucleotide change in the genome.
|Accession|Strain|Location|Collection date|Lab
|—|—|—|—|—|—|
|EPI_ISL_404895|BetaCoV/USA/WA1/2020|USA / Washington / Snohomish County|2020-01-19|[1]|
|EPI_ISL_404253|BetaCoV/USA/IL1/2020|USA / Illinois /Chicago|2020-01-21|[2]|
[1] Providence Regional Medical Center, Division of Viral Diseases, Centers for Disease Control and Prevention
[2] Pathogen Discovery, Respiratory Viruses Branch, Division of Viral Diseases, Centers for Diseases Control and Prevention|IL Department of Public Health Chicago Laboratory