Concentration and prevalence of Escherichia coli O157 in sheep faeces at pasture in Scotland.

Iain D Ogden, Marion MacRae, Norval James Colin Strachan

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43 Citations (Scopus)

Abstract

Aims: To study the presence, numbers and virulence profiles of Escherichia coli O157 in sheep faeces and validate the microbiological methods used to attain these data.

Methods and Results: Flock level prevalence was found to be 40% ( six from 15) and 6(.)5% of faecal samples tested were found to be positive. Two farms gave samples defined as high shedding (>10(4) CFU g(-1)), one of which comprised 91% positive samples with 13/33 at the high shedding level.

Conclusions: These data confirmed that sheep are an important reservoir of E. coli O157. Significance and Impact of the Study: Sheep play a significant role in the maintenance and dispersal of E. coli O157 in the farming environment and are an important source of human infection.

Original languageEnglish
Pages (from-to)646-651
Number of pages5
JournalJournal of Applied Microbiology
Volume98
DOIs
Publication statusPublished - 2005

Keywords

  • concentration and prevalence
  • Escherichia coli O157
  • immunomagnetic separation
  • sheep
  • QUANTITATIVE RISK-ASSESSMENT
  • VIRULENCE GENES
  • CATTLE
  • INFECTION
  • OUTBREAK
  • BEEF
  • SEROTYPES
  • SLAUGHTER
  • HAMBURGERS
  • SPAIN

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