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Volume 18, Number 4—April 2012

Research

Comparison of Escherichia coli ST131 Pulsotypes, by Epidemiologic Traits, 1967–2009

James R. JohnsonComments to Author , Marie-Hélène Nicolas-Chanoine, Chitrita DebRoy, Mariana Castanheira, Ari Robicsek, Glen Hansen, Scott Weissman, Carl Urban, Joanne Platell, Darren Trott, George Zhanel, Connie Clabots, Brian D. Johnston, Michael A. Kuskowski, and the MASTER Investigators
Author affiliations: Veterans Affairs Medical Center, Minneapolis, Minnesota, USA (J.R. Johnson, C. Clabots, B.D. Johnston, M.A. Kuskowski); University of Minnesota, Minneapolis (J.R. Johnson, B.D. Johnston, M.A. Kuskowski); Hôpital Beaujon, Clichy, France (M.-H. Nicolas-Chanoine); The Pennsylvania State University, College Park, Pennsylvania, USA (C. DebRoy); JMI Laboratories, North Liberty, Iowa, USA (M. Castanheira); NorthShore University HealthSystem, Evanston, Illinois, USA (A. Robicsek); Hennepin County Medical Center, Minneapolis (G. Hansen); University of Washington, Seattle, Washington, USA (S. Weissman); New York Hospital Queens, Flushing, New York, USA (C. Urban); New York University School of Medicine, New York, New York, USA (C. Urban); University of Queensland, Brisbane, Queensland, Australia (J. Platell); University of Adelaide, Adelaide, South Australia, Australia (D. Trott); University of Manitoba, Winnipeg, Manitoba, Canada (G. Zhanel)

Main Article

Table 2

Geographic origin and ecologic source of 65 pulsotypes among 579 Escherichia coli ST131 isolates, 1967–2009*

No. isolates per pulsotype No. pulsotypes No. pulsotypes with isolate from indicated no. geographic regions†
No. pulsotypes with isolates from indicated no. ecologic sources‡
1 2 3 4 5 6 1 2 3 4
2 28 13 15 NA NA NA NA 26 2 NA NA
3 12 4 8 0 NA NA NA 10 2 0 NA
4 10 1 3 5 1 NA NA 9 0 0 1
5 3 0 2 1 0 0 NA 1 2 0 0
6 3 0 0 0 2 1 0 2 1 0 0
7 3 0 0 0 1 2 0 2 0 1 0
>8 6 0 1 1 0 1 3 1 3 2 0

*ST, sequence type; NA, not applicable (no. regions or source groups exceeds no. isolates in pulsotype).
†The 6 geographic regions included the US West, Midwest, South, and Northeast; Canada; and other international sites (collectively).
‡The 5 source groups included humans, companion animals, food animals, other animals, and food and water combined.

Main Article

1MASTER (Macrorestriction Analysis of ST131 for Epidemiologic Research) Investigators who contributed data are listed at the end of this article.

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