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Canadian perspectives on verocytotoxin-producing Escherichia coli infection.

Author(s) : WILSON J. B., JOHNSON R. P., CLARKE R. C., RAHN K., RENWICK S. A., ALVES D., KARMALI M. A., MICHEL P., ORRBINE E., SPIKA J. S.

Type of article: Article

Summary

Infection with verocytotoxin-producing Escherichia coli (VTEC) became nationally reportable in 1990. Most cases are sporadic and are caused by E. coli O157:H7. Contact with cattle, consumption of well water, and exposure to rural environments are important risk factors for VTEC infection. Controlling E. coli O157:H7 and other VTECs at the farm level may have a broader impact than simply reducing the risk of foodborne VTEC infection. Longitudinal studies on dairy farms have demonstrated that E. coli O157:H7 carriage by cattle at the farm and animal level is often transient, and that cattle, rather than the farm environment, are the major reservoir for this organism on dairy farms. Small herds have the highest risk for VTEC infection. Further studies at the farm leve are necessary.

Details

  • Original title: Canadian perspectives on verocytotoxin-producing Escherichia coli infection.
  • Record ID : 1999-0176
  • Languages: English
  • Source: Journal of Food Protection - vol. 60 - n. 11
  • Publication date: 1997/11
  • Document available for consultation in the library of the IIR headquarters only.

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