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The prevalence of Escherichia coli O157.H7 in dairy and beef cattle in Washington State

  • D. D. Hancock (a1), T. E. Besser (a2), M. L. Kinsel (a1), P. I. Tarr (a3), D. H. Rice (a1) and M. G. Paros (a1)...

Escherichia coli O157.H7 was found in 10 of 3570 (0·28%) faecal samples from dairy cattle in 5 of 60 herds (8·3%). Several tentative associations with manure handling and feeding management practices on dairy farms were identified. Faecal/urine slurry samples, bulk milk samples, and milk filters from dairy herds were negative for E. coli 0157.H7. E. coli 0157.H7 was also isolated from 10 of 1412 (0·71 %) faecal samples from pastured beef cattle in 4 of 25 (16%) herds. The prevalence of E. coli 0157. H7 excretion in feedlot beef cattle was 2 of 600 (0·33 %). The identification of cattle management practices associated with colonization of cattle by E. coli 0157.H7 suggests the possibility that human E. coli O157.H7 exposure may be reduced by cattle management procedures.

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Epidemiology & Infection
  • ISSN: 0950-2688
  • EISSN: 1469-4409
  • URL: /core/journals/epidemiology-and-infection
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