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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5
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pubmed:dateCreated |
1995-6-27
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pubmed:abstractText |
Dilutions of faecal samples spiked with Yersinia enterocolitica O:3 were analysed using immunomagnetic separation (IMS) followed by PCR. In 10% faecal dilutions with added Y. enterocolitica cells, the limit of detection was 200 cells g-1 faeces. Faecal samples from 38 pigs were analysed by IMS-PCR in parallel with detection and quantification of Y. enterocolitica O:3 using cold pre-enrichment culturing. Of the 15 culture-positive samples, only two were detected with IMS-PCR. These two samples contained 40-400 Y. enterocolitica O:3 cells g-1 faeces; the highest level found in the investigation. This indicated that the low sensitivity of IMS-PCR was due to low amounts of cells in the faecal samples. Swab samples from 195 pig tonsils, taken on a slaughterline were examined using IMS-PCR and culture detection. Of 164 culture-positive samples, 60 were positive with IMS-PCR. In addition, IMS-PCR was positive for three culture-negative samples. Forty-five of the samples were further examined by IMS-PCR after 7-10 d of cold pre-enrichment. All 31 culture-positive samples as well as five culture-negative samples were detected by IMS-PCR. From these data it can be concluded that IMS-PCR can be used to detect Y. enterocolitica O:3 cells after pre-enrichment, but direct detection needs further optimization of the sample preparation procedures.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
May
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pubmed:issn |
0021-8847
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
78
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
563-8
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:7759385-Animals,
pubmed-meshheading:7759385-Base Sequence,
pubmed-meshheading:7759385-DNA Primers,
pubmed-meshheading:7759385-Evaluation Studies as Topic,
pubmed-meshheading:7759385-Feces,
pubmed-meshheading:7759385-Immunomagnetic Separation,
pubmed-meshheading:7759385-Molecular Sequence Data,
pubmed-meshheading:7759385-Palatine Tonsil,
pubmed-meshheading:7759385-Polymerase Chain Reaction,
pubmed-meshheading:7759385-Sensitivity and Specificity,
pubmed-meshheading:7759385-Swine,
pubmed-meshheading:7759385-Yersinia enterocolitica
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pubmed:year |
1995
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pubmed:articleTitle |
Detection of Yersinia enterocolitica O:3 in faecal samples and tonsil swabs from pigs using IMS and PCR.
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pubmed:affiliation |
RVAU Centre for Food Research, Biotechnological Institute, Lyngby, Denmark.
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pubmed:publicationType |
Journal Article
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