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Occurrence of Escherichia coli O157:H7 in Diverse Farm Environments
Journal of Food Protection (2007)
  • C. A. Doane
  • P. Pangloli
  • H. A. Richards
  • J. R. Mount
  • David A Golden, University of Tennessee, Knoxville
  • F. A. Draughon
In the United States, foodborne outbreaks of Escherichia coli O157:H7 illness have often been linked to the consumption of contaminated, undercooked ground beef. However, the occurrence of E. coli O157:H7 has also been reported in other farm animals. The objective of this study was to evaluate the occurrence of E. coli O157:H7 on diverse farm types and from a variety of farm samples. Rectal swabs (n = 1,686) and environmental samples (n = 576) were collected from 16 farms in five states over 24 months and analyzed for the presence of E. coli O157:H7. Overall, E. coli O157:H7 was found in 3.6% of beef cattle, 3.4% of dairy cattle, 0.9% of chicken, 7.5% of turkey, and 8.9% of swine samples. The pathogen was isolated sporadically from each of the environmental sample types. Of particular concern was the isolation of E. coli O157:H7 from fresh feed samples, indicating a potential vector for transmission. The data from this study indicate a high occurrence of E. coli O157:H7 on swine and turkey farms. This unexpected result suggests that more research on the occurrence of E. coli O157:H7 on these types of farms is required in order to better understand potential reservoirs of pathogenic E. coli.
Publication Date
January, 2007
Citation Information
C. A. Doane, P. Pangloli, H. A. Richards, J. R. Mount, et al.. "Occurrence of Escherichia coli O157:H7 in Diverse Farm Environments" Journal of Food Protection Vol. 70 Iss. 1 (2007)
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