Identification of management risk factors for VTEC O157 in young-stock in England and Wales

Johanne Ellis-Iversen, Richard P. Smith, Lucy C. Snow, Eamon Watson, Michael F. Millar, Geoff C. Pritchard, Anthony R. Sayers, Alasdair J. C. Cook, Sarah J. Evans, Giles A. Paiba

Research output: Contribution to journalJournal articleResearchpeer-review


We conducted a cross-sectional study on 255 cattle farms in England and Wales to identify risk factors for verocytotoxin-producing E. coli O157 (VTEC). Exposure variables were collected at the levels of the farm and of the group of young-stock within the farms. On each farm a group of young-stock (6-18 months of age) was sampled to establish VTEC status.In our multiple logistic regression, farm VTEC status was associated with access to springs (OR: 0.31, CI95%: 0.12, 0.78) and assessing the wetness of the bedding material less frequently than daily (OR: 3.89 CI95%: 1.5, 10.2). At group-level we found no associated risk factors for animals housed outdoors in fields. Significant for groups housed in pens were wet bedding (wet OR: 3.43, CI95%: 1.3, 9.4; very wet OR: 4.24, CI95%: 1.2, 14.6), number of animals in the group (10-15 OR: 2.72, CI95%: 0.75, 9.9, 16-24, OR: 3.78, CI95%: 1.2, 12.3; >25 OR: 3.78, CI95%: 1-1, 12.7) and feeding straw (OR: 2.29, CI95%: 1.2, 5.5).
Original languageEnglish
JournalPreventive Veterinary Medicine
Issue number1-2
Pages (from-to)29-41
Number of pages13
Publication statusPublished - 2007
Externally publishedYes


  • Cattle
  • Risk factor
  • STEC
  • VTEC
  • Zoonoses

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