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Comparative Study
. 2004 Jul;70(7):4375-8.
doi: 10.1128/AEM.70.7.4375-4378.2004.

Comparison of shiga-toxigenic Escherichia coli prevalences among dairy, feedlot, and cow-calf herds in Washington State

Rowland N Cobbold  1 , Daniel H Rice, Maryanne Szymanski, Douglas R Call, Dale D Hancock
Affiliations
Comparative Study

Comparison of shiga-toxigenic Escherichia coli prevalences among dairy, feedlot, and cow-calf herds in Washington State

Rowland N Cobbold et al. Appl Environ Microbiol. 2004 Jul.

Abstract

Shiga-toxigenic Escherichia coli (STEC) strains were isolated from 7.4% of 1,440 fecal and farm environmental samples. Shiga toxin gene and STEC prevalences were significantly associated with animal production type and season. A range of serogroups were identified. Nine percent of isolates possessed all three principal virulence markers: stx(2), eae, and ehx.

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Figures

FIG. 1.
FIG. 1.
Percentages of samples (fecal and environmental) positive for the stx gene and STEC from 13 farms representing bovine production systems in Washington State. Bars represent 95% CIs.
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