Figure 2. Phylogenetic trees of hla gene (A) and concatenated sequences of MLST alleles (B) from 23 STs representatives of the strains collection.

The tree was constructed using MEGA 5 with Neighbour-joining method and bootstrap values provided as percents over 1000 replications. Branch length values are indicated and the percentage of replicate trees (bootstrap test) are shown next to the branches. The dashed line indicates the separation of the two evolutionary branches.