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Article

Human<i>Escherichia coli</i>O157:H7 Genetic Marker in Isolates of Bovine Origin

1 Aug 2004

Abstract excerpt

The antiterminator Q gene of bacteriophage 933W (Q933) was identified upstream of the stx2 gene in 90% of human disease-origin Escherichia coli O157:H7 isolates and in 44.5% of bovine isolates. Shiga toxin production was higher in Q933-positive isolates than Q933-negative isolates. This genetic marker may provide a useful molecular tool for epidemiologic studies.

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PMID: 15496255
DOI: 10.3201/eid1008.030784

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

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