PFGE dendrogram of ESBL–producing
. The PFGE patterns of the 92 K. pneumoniae ESBL producers are displayed on the dendrogram. The diagram also shows the isolate numbers, wards, specimens, ESBL alleles, phylogenetic groups as well as the PFGE cluster. Dashed X line indicates SAB of 0.8 revealing 13 clusters (X1-X13). NU, neonatal unit; NICU, neonatal intensive care unit.