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Interaction between attaching-effacing Escherichia coli O26:K60 and O157:H7 in young lambs

Aktan, I., Woodward, M. and La Ragione, R. M. (2009) Interaction between attaching-effacing Escherichia coli O26:K60 and O157:H7 in young lambs. Research in Veterinary Science, 87 (1). pp. 13-15. ISSN 0034-5288

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To link to this article DOI: 10.1016/j.rvsc.2008.11.006

Abstract/Summary

Recent surveys have shown that Escherichia coli O26 is prevalent in ruminants compared with E. coli O157. These serogroups share common colonisation factors and we hypothesised that prior colonisation by E. coli O26 may show reduced colonisation by E. coli O157. To test this hypothesis, strains of E. coli O26:K6O and O157:H7 were tested in competitive in vitro and in vivo studies. Using an established 6-week-old lamb model, an experimental group of lambs was dosed orally with E. coli O26:K6O and then E. coli O157:147 four days later. The faecal shedding of O26:K6O and O157:H7 organisms from this experimental group was compared with that from animals dosed with either O26:K6O alone or O157:H7 alone. Shedding data indicated that counts for O157:H7 were unaffected by the competition from O26:K6O, whereas the O26:K6O counts were lower when competing with O157:H7. (C) 2008 Elsevier Ltd. All rights reserved.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Chemistry, Food and Pharmacy > Department of Food and Nutritional Sciences > Food Microbial Sciences Research Group
No Reading authors. Back catalogue items
ID Code:28313
Publisher:Elsevier

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