FIG. 7.
Dendrograms generated from the similarity coefficients (SABs) computed for all pairs of 57 unrelated isolates collected worldwide and fingerprinted with Cd25. The origins of the isolates are presented in Table 1. The letters (A through H) to the right of the dendrogram indicate the hospitals of origin in cases where several isolates, each from a different individual, were collected from the same hospital: A, Brussels, Belgium; B, Leicester, United Kingdom; C, London, United Kingdom; D, Antwerp, Belgium; E, Frankfurt, Germany; F, Victoria, Australia; G, Lausanne, Switzerland; H, Leeds, United Kingdom. The two main clusters are delineated to the right of the dendrogram (groups I and II). The average SABs for each group, and for the total collection, are presented in the middle of the dendrogram.