Figure 2.
Phylogenetic analysis of sequences of early introductions and subsequently circulating SARS-CoV-2 in northern France, 24 January–23 March 2020
GISAID: Global Initiative on Sharing All Influenza Data; SARS-CoV-2: severe acute respiratory syndrome coronavirus 2.
Time calibrated tree of 438 SARS-CoV-2 sequences including northern France, Algeria and publicly available global sequences. The tree is rooted using the reference strain Wuhan/Hu-1/2019n (GenBank accession number: MN908947). The tips of the tree are shaped and coloured according to sampling location. Branch lengths are proportional to the time span from the sampling date to the inferred date of the most recent common ancestor. The three major clades according to GISAID nomenclature are indicated. Strain names of the sequences discussed in this study are indicated next to the corresponding tips.
