Escherichia coli O157:H7 in microbial flora of sheep

We found naturally occurring, potentially virulent Escherichia coli O157:H7 strains in sheep. The incidence of E. coli O157:H7 was transient and ranged from 31% of sheep in June to none in November. The use of a sensitive culture technique and the choice of the proper sampling season were both essen...

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Bibliographic Details
Published in:Journal of Clinical Microbiology 1996-02, Vol.34 (2), p.431-433
Main Authors: Kudva, I.T. (University of Idaho, Moscow, ID.), Hatfield, P.G, Hovde, C.J
Format: Article
Language:English
Subjects:
Animals
Bacterial Toxins - genetics
Bacteriology
Biological and medical sciences
Cattle
DNA Probes
Epidemiology
ESCHERICHIA COLI
Escherichia coli - classification
Escherichia coli - isolation & purification
Escherichia coli - pathogenicity
Female
FLORA MICROBIANA
FLORE MICROBIENNE
Fundamental and applied biological sciences. Psychology
Genes, Bacterial
Meat - microbiology
Microbiology
OVIN
OVINOS
Seasons
Sheep - microbiology
Shiga Toxin 1
Shiga Toxin 2
Virulence - genetics
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Summary:We found naturally occurring, potentially virulent Escherichia coli O157:H7 strains in sheep. The incidence of E. coli O157:H7 was transient and ranged from 31% of sheep in June to none in November. The use of a sensitive culture technique and the choice of the proper sampling season were both essential for detecting this bacterium in sheep. DNA hybridizations showed that 80% of the E. coli O157:H7 isolates had at least two of the Shiga-like toxin types I or II or the attaching-effacing lesion genes
ISSN:0095-1137
1098-660X
DOI:10.1128/jcm.34.2.431-433.1996