| summary of 11 years of enteric outbreak investigations and criteria to initiate an investigation, province of quebec, 2002 through 2012. | this article presents a retrospective analysis of enteric disease outbreak investigations led by or conducted in collaboration with provincial health authorities in the province of quebec from 2002 through 2012. objectives were to characterize enteric disease outbreaks, quantify and describe those for which a source was identified (including the control measures implemented), identify factors that contributed to or impeded identification of the source, and recommend areas for improvement in outb ... | 2014 | 25198848 |
| genotypic characterization and prevalence of virulence factors among canadian escherichia coli o157:h7 strains. | in this study, the association between genotypic and selected phenotypic characteristics was examined in a collection of canadian escherichia coli o157:h7 strains isolated from humans and cattle in the provinces of alberta, ontario, saskatchewan, and quebec. in a subset of 69 strains selected on the basis of specific phage types (pts), a strong correlation between the lineage-specific polymorphism assay (lspa6) genotype and pt was observed with all strains of pts 4, 14, 21, 31, 33, and 87 belong ... | 2008 | 18487402 |
| evaluation of the reveal and safepath rapid escherichia coli o157 detection tests for use on bovine feces and carcasses. | the reveal (neogen corp., lansing, mich.) and safepath (safepath laboratories llc, st. paul, minn.) tests were evaluated for their performance as beef fecal and beef carcass escherichia coli o157:h7 monitoring tests. agreement between these tests and a reference test system was determined using naturally contaminated bovine feces and beef carcasses. the reference system utilized immunomagnetic separation with plating onto cefixime, tellurite, sorbitol macconkey agar, followed by colony testing u ... | 2000 | 10914650 |
| escherichia coli o157:h7 outbreak linked to raw milk cheese in quebec, canada: use of exact probability calculation and casecase study approaches to foodborne outbreak investigation. | the analytical studies used to investigate foodborne outbreak are mostly case-control or retrospective cohort studies. however, these studies can be complex to perform and susceptible to biases. this article addresses basic principles of epidemiology, probability, and the use of case-case design to identify the source of an escherichia coli o157:h7 outbreak linked to raw milk cheese consumption in quebec, canada; a small number of cases with the same pulsed-field gel electrophoresis (pfge) profi ... | 2012 | 22564928 |
| escherichia coli o157:h7 outbreak associated with the consumption of beef and veal tartares in the province of quebec, canada, in 2013. | an escherichia coli o157:h7 outbreak occurred in 2013 that was associated with the consumption of beef and veal tartares in the province of quebec. this report describes the results of the ensuing investigation. | 2015 | 25974740 |