Antibiotic resistance in the dominant Global Pneumococcal Sequence Clusters (GPSCs).
Boxplots of minimum, first quartile, median, third quartile, and maximum percentage of pneumococcal isolates with antibiotic resistance to five common classes. Each dot represents a dominant-GPSC (n = 35). Only the unperturbed pre-PCV isolates was used to capture the distribution of resistance to each class across the dominant-GPSCs.