FIG. 4.

PFGE profiles of Escherichia coli serogroup O6 isolates from humans (H), dogs (D), and cats (C) with identical STs and virulence profiles. The dendrogram was inferred according to UPGMA based on Dice similarity coefficients as calculated from PFGE band positions. Profiles exhibiting ≥94% similarity (boxed) were regarded as representing the same PFGE type. Isolates D026 and H034 (PFGE type 435; ST127) were submitted in 1985. They were isolated, respectively, from a dog in Florida and a woman in New York, each with a UTI.