Fig. 3: Comparison of VFG distribution in BSI-derived CC1-, CC5-, and CC8-MRSA lineages during 1994–2000 and 2019–2020.

The proportion of major virulence factor genes (VFGs) of each MRSA type is shown in a heatmap. The numbers in the heatmap columns are shown as percentages. *p < 0.02; ST5-II_1994-2000 vs. ST5-II_2019-2020. P-value (p) was calculated using the χ2 test.