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Volume 13, Number 10—October 2007

Dispatch

Multidrug-Resistant Salmonella Typhimurium, Pacific Northwest, United States

Margaret A. Davis*Comments to Author , Thomas E. Besser*, Kaye Eckmann†, J. Kathryn MacDonald†, Donna Green†, Dale D. Hancock*, Katherine N.K. Baker*, Lorin D. Warnick‡, Yesim Soyer‡, Martin Wiedmann‡, and Douglas R. Call*
Author affiliations: *Washington State University, Pullman, Washington, USA; †Washington State Department of Health Public Health Laboratories, Shoreline, Washington, USA; ‡Cornell University, Ithaca, New York, USA;

Main Article

Table 2

Human- and bovine-source Salmonella Typhimurium isolates from Washington that were XbaI-PFGE type TYP035 or TYP187*

Year Human
Bovine
TYP035 TYP187 Total no.† (%)‡ TYP035 TYP187 Total no.† (%)‡
2000 1 0 222 (0.5) 16 0 61 (26.2)
2001 1 0 174 (0.6) 18 0 47 (38.3)
2002 8 0 143 (5.6) 10 0 31 (32.3)
2003 13 0 153 (8.5) 5 0 13 (38.5)
2004 7 0 143 (4.9) 10 1 26 (42.3)
2005 18 0 124 (8.9) 12 2 29 (48.3)
2006 3 7 118 (8.5) 8 12 39 (51.3)

*For human isolates only a single isolate per individual was included, and for bovine isolates only independent isolates were included. PFGE, pulsed-field gel electrophoresis.
†Total number of unique S. Typhimurium isolates.
‡Percentage of the total that were part of the TYP035-TYP187 clade.

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