A5026121774- Escherichia coli research studies
- Salmonella and Campylobacter epidemiology
- Listeria monocytogenes in Food Safety
- Viral gastroenteritis research and epidemiology
- Meat and Animal Product Quality
- Probiotics and Fermented Foods
- Food Safety and Hygiene
- Enterobacteriaceae and Cronobacter Research
- Identification and Quantification in Food
- Bacteriophages and microbial interactions
- Essential Oils and Antimicrobial Activity
- Microbial Inactivation Methods
- Radiation Effects and Dosimetry
- Hepatitis Viruses Studies and Epidemiology
- Pediatric health and respiratory diseases
- Biochemical Analysis and Sensing Techniques
- Genomics and Phylogenetic Studies
- Insect and Pesticide Research
- Vibrio bacteria research studies
- Cytomegalovirus and herpesvirus research
- Clostridium difficile and Clostridium perfringens research
- Animal Nutrition and Physiology
- Restraint-Related Deaths
- Coconut Research and Applications
- Drilling and Well Engineering
Health Canada
2015-2024
The University of Melbourne
2023
Michigan State University
2017
Sparrow Hospital
2017
University of Manitoba
2000-2006
ABSTRACT The spice oil components eugenol and cinnamaldehyde possess activity against both gram-positive gram-negative bacteria, but the mechanisms of action remain obscure. In broth media at 20°C, 5 mM or 30 was bactericidal (>1-log reduction in number CFU per milliliter 1 h) to Listeria monocytogenes . At a concentration 6 Lactobacillus sakei , treatment with 0.5 M had no significant effect. To investigate role interference energy generation mechanism action, cellular extracellular ATP...
Abstract Shiga toxin-producing Escherichia coli (STEC) infections pose a substantial health and economic burden worldwide. To target interventions to prevent foodborne infections, it is important determine the types of foods leading illness. Our objective was food sources STEC globally for six World Health Organization regions. We used data from outbreaks that have occurred estimate source attribution fractions. categorised according their ingredients applied probabilistic model information...
Shiga toxin (Stx) is the definitive virulence factor of toxin-producing Escherichia coli (STEC). Stx variants are currently organized into a taxonomic system three Stx1 (a, c, and d) seven Stx2 b, d, e, f, g) subtypes. In this study, STEC isolates from food clinical samples possessing stx2 sequences that do not fit current taxonomy were identified. Genome assemblies strains created Oxford Nanopore Illumina sequence data. The presence atypical was confirmed by Sanger sequencing, as expression...
Non-typhoidal Salmonella is a leading cause of foodborne illness worldwide. Prompt and accurate identification the sources responsible for disease outbreaks crucial to minimise infections eliminate ongoing contamination. Current subtyping tools including single nucleotide polymorphism (SNP) typing may be inadequate, in some instances, provide required discrimination among epidemiologically unrelated strains. Prophage genes represent majority accessory bacteria genomes have potential used as...
Chlorine treatments are used in water and wastewater sanitation; the resistance of Escherichia coli to chlorine is thus concern public health. We show that a genetic island termed locus heat (LHR) protects E. not only against but also other oxidizing chemicals, adding our knowledge tools by resist stress. Specific detection oxidation different cellular targets combination with cloning fragments LHR provided insight into mechanisms protection demonstrated protect targets. In , presence...
The Salmonella Syst-OMICS consortium is sequencing 4,500 genomes and building an analysis pipeline for the study of genome evolution, antibiotic resistance virulence genes. Metadata, including phenotypic as well genomic data, isolates collection are provided through Foodborne database (SalFoS), at https://salfos.ibis.ulaval.ca/. Here, we present our strategy first 3,377 genomes. Our data will be used to draw potential links between strains found in fresh produce, humans, animals environment....
Korean style kimchi contaminated with Shiga toxin-producing Escherichia coli (STEC) O157:H7 was the cause of an outbreak in Canada from December 2021 to January 2022. To determine if this STEC has greater potential for survival than other STEC, strain and six strains (O26:H11, O91:H21, O103:H2, O121:H19, two O157:H7) were inoculated individually at 6 6.5 log CFU/g into commercially sourced incubation 4 °C. At intervals seven days control plated onto MacConkey agar enumerate lactose utilising...
Shiga toxin-producing Escherichia coli (STEC) are foodborne enteric pathogens. STEC differentiated from other E. by detection of toxin (Stx) or its gene (stx). The established nomenclature Stx identifies ten subtypes (Stx1a, Stx1c, Stxd, Stx2a to Stx2g). An additional nine have been reported and described (Stx1e, Stx2h Stx2o). Many PCR protocols only detect a subset which limits their inclusivity. Here we describe real-time assay inclusive the DNA sequences representatives all currently...