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

Published online by Cambridge University Press:  15 May 2009

D. D. Hancock ,
T. E. Besser ,
M. L. Kinsel ,
P. I. Tarr ,
D. H. Rice  and
M. G. Paros
D. D. Hancock
Affiliation:
Field Disease Investigation Unit, Washington State University, Pullman, WA 99164-6610, USA
T. E. Besser
Affiliation:
Department of Veterinary Microbiology and Pathology, WSU, Pullman, WA 99164-7040
M. L. Kinsel
Affiliation:
Field Disease Investigation Unit, Washington State University, Pullman, WA 99164-6610, USA
P. I. Tarr
Affiliation:
Children's Hospital, University of Washington, Seattle, WA 98105
D. H. Rice
Affiliation:
Field Disease Investigation Unit, Washington State University, Pullman, WA 99164-6610, USA
M. G. Paros
Affiliation:
Field Disease Investigation Unit, Washington State University, Pullman, WA 99164-6610, USA
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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.

Type
Research Article
Information
Epidemiology & Infection , Volume 113 , Issue 2 , October 1994 , pp. 199 - 207
Copyright
Copyright © Cambridge University Press 1994

References

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