Human Escherichia coli O157:H7 Genetic Marker in Isolates of Bovine Origin
نویسندگان
چکیده
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.
منابع مشابه
The prevalence of Escherichia coli O157:H7, Listeria monocytogenes and Campylobacter spp. on bovine carcasses in Isfahan, Iran
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