Clustering analysis of MLVA data for 62 selected isolates and 4 reference strains. All CC45, CC51 and CC5 isolates cluster into the second part (genotypes 61 to 119) of the dendogram constructed from MLVA-14 testing of 116 strains and 12 reference strains. One strain per genotype and per patient is included (consequently some patients are represented by more than one strain). The patient code, the name of the selected isolate, the spa repeat code, the spa type, the methicillin (oxacillin) resistance status, the presence (y) or absence (n) of mecA, the number of isolates of identical genotype, the genotype number are shown on the right. On the left are indicated the names of MLST clonal complexes. A different coloured square is used to indicate clusters of two or more isolates, using the same colour code as in Figure 1.