Fig. 1

Cluster analysis of genetic fingerprints of UTIs and DRC isolates of E. faecalis by the use of RAPD-PCR. The similarity matrix of the generated fingerprints was based on the Pearson product-moment correlation coefficient. A cluster analysis was deduced using the unweighted-pair-group method with arithmetic averages (UPGMA). The isolates differentiation was achieved at a cut off level of 85 %. Overall, fourteen clusters were included I-XIV, which each cluster contained 4–19 isolates exception of cluster VIII and XIII that cluster XIII had 1 isolate of the DRC and cluster VIII had 2 isolates of the UTIs