Multidrug-Resistant Salmonella Typhimurium, Pacific Northwest, United States
Margaret A. Davis* , 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;
Appendix Figure. Dendogram of cluster analysis of pulsed-field gel electrophoresis (PFGE) banding patterns of XbaI-digested Salmonella enterica serotype Typhimurium DNA. A, ampicillin; C, chloramphenicol; K, kanamycin; Sxt, trimethoprim-sulfa; S, streptomycin; T, tetracycline; Su, sulfonamine; Caz, ceftazidime. TYP004 is the PFGE type characteristic of DT104. Each isolate represented here is a unique bovine-origin isolates (each is from a different herd, year, and resistance type). WA, Washington; ID, Idaho.
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