In-line milk filter analysis: Escherichia coli O157 surveillance of milk production holdings

Escherichia coli O157 is a major etiological agent of food-borne illness. Bovine animals are recognized reservoirs for this organism and represent a significant source from where these pathogens can enter the food chain. Food products derived from these animals are convenient vehicles, and are often...

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Bibliographic Details
Published in:International journal of hygiene and environmental health 2005-01, Vol.208 (5), p.407-413
Main Authors: Murphy, Brenda P., Murphy, Mary, Buckley, James F., Gilroy, Deirdre, Rowe, Michael T., McCleery, David, Fanning, Séamus
Format: Article
Language:English
Subjects:
Air. Soil. Water. Waste. Feeding
Animals
Bacteriology
Biological and medical sciences
Dairying
DNA, Bacterial - analysis
E. coli O157
Electrophoresis, Gel, Pulsed-Field
Environment. Living conditions
Escherichia coli O157 - classification
Escherichia coli O157 - isolation & purification
Escherichia coli O157 - pathogenicity
Filtration
Food Microbiology
In-line milk filters
Ireland
Medical sciences
Microbial Sensitivity Tests
Milk - microbiology
Multiplex-PCR
Public health. Hygiene
Public health. Hygiene-occupational medicine
Toxicology
Virulence
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Summary:Escherichia coli O157 is a major etiological agent of food-borne illness. Bovine animals are recognized reservoirs for this organism and represent a significant source from where these pathogens can enter the food chain. Food products derived from these animals are convenient vehicles, and are often the focal point(s) of infection. As a useful strategy to provide herd-level surveillance and to investigate for the presence of this pathogen in a population of Irish dairy cattle, milk filters from 97 farms were analysed by conventional culture and other methods. Five hundred and thirty-six milk filters were evaluated over a 2-year period. Filters from 12 of the 97 farms (12%) were found to contain E. coli O157, based on culture methods. Sixteen verocytotoxigenic E. coli O157 organisms were recovered and characterized in detail. The farm families in each case were consuming raw milk from their respective herds. The potential risk to public health associated with the detection of E. coli O157 and the local consumption of raw milk are discussed.
ISSN:1438-4639
1618-131X
DOI:10.1016/j.ijheh.2005.03.001