Figure 1: Dendrogram of pulsed-field gel electrophoresis profiles of ApaIdigested genomic DNA of isolates susceptible to the bacteriophage. Each isolate was from a different patient and hospital, (A-I) and had a distinct Variable Number Tandem Repeat (VNTR) profile at two loci that can provide discrimination within a PFGE type, providing further evidence that the isolates were epidemiologically distinct. All susceptible isolates belonged to the international clone II lineage.