A5062015072- Milk Quality and Mastitis in Dairy Cows
- Probiotics and Fermented Foods
- Enterobacteriaceae and Cronobacter Research
- Antibiotic Resistance in Bacteria
- Animal Behavior and Welfare Studies
- Salmonella and Campylobacter epidemiology
- Gut microbiota and health
- Listeria monocytogenes in Food Safety
- Food Safety and Hygiene
- Bacteriophages and microbial interactions
- Mycobacterium research and diagnosis
- Antimicrobial Peptides and Activities
- Identification and Quantification in Food
- Bacterial Identification and Susceptibility Testing
- Escherichia coli research studies
- Advanced Chemical Sensor Technologies
- Bacterial biofilms and quorum sensing
- Food Supply Chain Traceability
- Bacillus and Francisella bacterial research
- Aquaculture disease management and microbiota
- Microbial infections and disease research
- Pharmaceutical and Antibiotic Environmental Impacts
- Arctic and Russian Policy Studies
- Analytical Methods in Pharmaceuticals
- Pharmacology and Obesity Treatment
McGill University
2020-2025
Fonds de Recherche du Québec – Nature et Technologies
2022-2025
Cegep de Saint Hyacinthe
2021-2025
Fonds de Recherche du Québec - Santé
2022
University of Saskatchewan
2018-2020
Chungnam National University
2017
Bovine mastitis is the most common infectious disease in dairy cattle with major economic implications for industry worldwide. Continuous monitoring emergence of antimicrobial resistance (AMR) among bacterial isolates from farms vital not only animal husbandry but also public health.In this study, prevalence AMR 113 Escherichia coli cases bovine clinical Canada was investigated. Kirby-Bauer disk diffusion test 18 antibiotics and microdilution method 3 heavy metals (copper, zinc, silver)...
Klebsiella pneumoniae sensu stricto (KpI) is an opportunistic pathogen capable of residing as a commensal in both human and bovine intestinal tracts can cause serious systemic infections humans severe clinical mastitis dairy cattle. It unclear what role zoonotic anthroponotic transmission play the dissemination KpI. In this study, we use comparative genomic approach to identify differences between KpI associated with disease cattle aimed any potential genetic barriers limiting these two...
The microbiota is implicated in several aspects of livestock health and disease. Understanding the structure function poultry would be a valuable tool for improving their productivity since can likely optimized metrics that are important to industry such as improved feed conversion ratio, lower greenhouse gas emissions, higher levels competitive exclusion against pathogens. Most research into understanding has relied on culture-independent methods; however, pure culture bacteria essential...
Escherichia coli is a major causative agent of environmental bovine mastitis and this disease causes significant economic losses for the dairy industry. There still debate in literature as to whether mammary pathogenic E. (MPEC) indeed unique pathotype, or infection merely an opportunistic caused by any isolate being displaced from gastrointestinal tract environment and, then, into udder. In study, we conducted thorough genomic analysis 113 novel MPEC isolates clinical cases 100 commensal...
Staphylococcus aureus is a major etiological agent of clinical and subclinical bovine mastitis. The versatile adaptative evolutionary strategies this bacterium have challenged mastitis control prevention globally, the high incidence S. increases concerns about antimicrobial resistance (AMR) zoonosis. This study aims to describe relationship between intramammary infection (IMI)-associated human pathogenic further elucidate specific genetic composition that leads emergence successful...
Staphylococcus aureus is a common cause of clinical mastitis (CM) in dairy cattle. Optimizing the bovine mammary gland microbiota to resist S. colonization growing area research. However, details interbacterial interactions between and commensal bacteria, which would be required manipulate microbiome infection, are still unknown. This study aims characterize changes milk bacterial community before, during, after CM compare communities present infected healthy quarters.We collected...
Staphylococcus aureus is one of the main pathogens leading to both clinical and subclinical bovine mastitis in dairy cattle. Prediction disease evolution based on characteristics Staph. isolates that cause intramammary infections understanding host-pathogen interactions may improve management herds. For this study, several strains were selected from each 6 major Canadian spa types associated with (t267, t359, t529, t605, t2445, t13401). Adherence host cells intracellular persistence these...
In recent years, the protozoan parasite Toxoplasma gondii has increasingly been recognized in Arctic fauna, including beluga whales (Delphinapterus leucas) Eastern Beaufort Sea (EBS), Northwest Territories. We qualitatively assessed risks of T. to health EBS because their importance livelihood communities as well potential role sentinels. This risk assessment used a standard framework hazard identification, characterization, exposure assessment, and characterization. conclude that currently,...
본 연구에서는 지금까지 알려진 바와 달리 항균활성의 적용범위가 모호한 actinonin을 대표적 식중독균인 B. cereus에 적용함으로써 식중독균에 대한 항균 효과에 대해 연구하였다. 계대배양된 대수기의 처리하여 생장 저해 여부를 확인하였고, 96-well plate를 이용한 broth micro-dilution 방법과 agar disk diffusion 방법을 통해 actinonin의 항균활성을 측정해본 결과, 농도에 비례하여 cereus의 생장이 저해되는 것으로 나타났다. 또한, 처리에 따른 세포 독성 측정 결과 actinonin이 또한 억제하는 것을 확인하였다. 따라서, actinonin은 천연항균물질로서 의한 식품 오염을 억제하고 식중독 예방 및 잠재적 치료제로서 적용 될 가능성이 있는 관찰되었으며, 나아가 다른 식중독균들에 가능성 탐색과 관련한 연구가 필요할 생각된다. The objective of this study was to investigate the...
Abstract Escherichia coli is a common environmental pathogen associated with clinical mastitis (CM) in dairy cattle. There an interest optimizing the udder microbiome to increase resistance of cattle E. CM; however, details which members healthy microbiota may play role antagonizing are unknown. In this study, we characterized bacterial community composition raw milk collected from quarters lactating Holstein cows that developed CM during lactation, including both and diseased (n=1,172). The...
ABSTRACT Klebsiella pneumoniae species complex members, particularly K. pnemoniae sensu stricto , are common bovine clinical mastitis pathogens and often the cause of hospital- community-acquired infections in humans. Here, we present 148 draft genome assemblies annotations members from human hosts Canada.
ABSTRACT Escherichia coli is a common environmental pathogen associated with clinical mastitis (CM) in dairy cattle. There an interest optimizing the udder microbiome to increase resistance of cattle E. CM; however, details which members healthy may play role antagonizing are unknown. In this study, we characterized bacterial community composition raw milk collected from quarters lactating Holstein cows that developed CM during lactation, including both and diseased ( n = 1,172). The...
Klebsiella pneumoniae is a common, opportunistic bacterial pathogen that can cause severe clinical mastitis in dairy cattle. Optimizing the bovine udder microbiome to resist pathogens growing area of research; however, previous work has not examined which members mammary may have antagonistic interactions with K. pneumoniae. In this study, we collected quarter-level milk samples from Holstein cows Québec, Canada every two weeks for 14 months and analyzed differences between were healthy...
Staphylococcus aureus is one of the most common etiological agents responsible for contagious bovine mastitis. Here, we report draft whole-genome sequences, with annotations, 27 S. strains and 3 species that were isolated from Holstein cows intramammary infection in Canada.
Escherichia coli is one of the most common etiological agents responsible for clinical bovine mastitis. Here, we report draft genome sequences and annotations 113 E. strains that were isolated from Holstein cows with intramammary infections in Canada.