Antimicrobial Resistance, Multilocus Sequence, and spa Typing of Staphylococcus aureus Isolated from Retail Raw Meat Products

Figure 3

Minimum spanning tree of the 50 S. aureus isolates typed by spa typing. Each node represents a spa type, and the size of the circle corresponds to the number of isolates. The numbers on the edges between the nodes, which are calculated based on the BURP algorithm, indicate the distance between two spa types. Node colors refer to the source of the isolates allocated to the spa type (red, ground beef; blue, chicken meat; green, seawater fish; pink, freshwater fish).