Figure 2.

Time-calibrated phylogeny of the Lassa virus strains from Benin, 2014–2016 (in pink), showing the trees created using the glycoprotein precursor (a), the nucleoprotein (b), and the polymerase (c). The trees are based on nucleotide sequences and posterior support values are shown at the nodes. Lineages are noted to the right of each tree and the scale axis represents the time in years. The GPC tree was inferred from 55 sequences, the NP tree from 52 sequences, and the L free from 41 sequences. The 19 sequences belonging to lineages IV and V have been collapsed, as they appear to be phylogenetically very distant, to make the figure more readable. However, the detailed list of the sequences used in this study are available in supplementary information.