Figure. Pulsed-field gel electrophoresis profiles of sequence type 398 isolates from the Dominican Republic (D); northern Manhattan (M), New York, NY, USA; and Canada (C) (provided by Scott Weese). Strains within households in which >1 person was colonized are identified numerically. The dendrogram shows the percent similarity of the isolates. A similarity >70% indicates closely related or identical strains.