title: Comparison of shiga-toxigenic Escherichia coli prevalences among dairy, feedlot, and cow-calf herds in Washington State.
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.
authors.affiliation: Field Disease Investigation Unit, Department of Veterinary Clinical Sciences, Washington State University, Pullman, WA 99164-6610, USA. cobbold@vetmed.wsu.edu
authors.forename: Rowland N
authors.initials: RN
authors.lastname: Cobbold
authors.forename: Daniel H
authors.initials: DH
authors.lastname: Rice
authors.forename: Maryanne
authors.initials: M
authors.lastname: Szymanski
authors.forename: Douglas R
authors.initials: DR
authors.lastname: Call
authors.forename: Dale D
authors.initials: DD
authors.lastname: Hancock
mesh_terms: D000822:Animal Husbandry; D000818:Animals; D002417:Cattle / Q000382:microbiology*; D004926:Escherichia coli / Q000145:classification / Q000302:isolation & purification* / Q000472:pathogenicity; D005260:Female; D012621:Seasons; D022621:Shiga Toxin / Q000235:genetics*; D014774:Virulence
chemical_list: D022621:Shiga Toxin