Figure 3.

Phylogenesis of CC181 (A) and its plausible paths of expansion in meningitis belt countries (B). Major clades/subclades are labeled with the countries and corresponding years of strains identification. Specimens collected for the current (2017–2019) study are capped with squares for clinicals or circles for isolates. Uncapped specimens are from the previous study (2011–2016). The tree scale is in units of average substitutions per site along that length of the branch. Abbreviation: BF, Burkina Faso.