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. 2014 Jun 17;4:78. doi: 10.3389/fcimb.2014.00078

Figure 2.

Figure 2

PFGE-based clustering of 66 STEC O178:H19 strains investigated in this study. Clusters A–E were defined using a cut-off value of 80% similarity and are indicated by different colors. The degree of similarity (%) is shown on the scale at the top left of the figure. stx2d*, mucus-activatable stx2d. All STEC O178:H19 strains possessed espP and iha, and all except strain FP-080 lpfAO113. None of the STEC O178:H19 strains possessed katP, etpD, and toxB.