Fig. 3: Population changes of N. meningitidis with different colors represent different serogroups.

a Population structure of N. meningitidis in three different periods. Each small colored circle represents an HC760 lineage, and the number inside the circle is the ID of that HC760. b A stacked bar chart showing the percentage of pathogenic serogroups in Europe, Africa, and Asia across the three time periods. Source data are provided as a Source Data file.