The occurrence of and non-aureus staphylococci in raw milk negatively correlates with clinical mastitis.

is a common environmental pathogen associated with clinical mastitis (CM) in dairy cattle. There is an interest in optimizing the udder microbiome to increase the resistance of dairy cattle to CM; however, the details of which members of the healthy udder microbiome may play a role in antagonizing are unknown. In this study, we characterized the bacterial community composition in raw milk collected from quarters of lactating Holstein dairy cows that developed CM during lactation, including milk from both healthy and diseased quarters ( = 1,172).

A longitudinal census of the bacterial community in raw milk correlated with Staphylococcus aureus clinical mastitis infections in dairy cattle.

Background: Staphylococcus aureus is a common cause of clinical mastitis (CM) in dairy cattle. Optimizing the bovine mammary gland microbiota to resist S. aureus colonization is a growing area of research.

Comparative genomic analysis of isolates associated with either bovine intramammary infections or human infections demonstrates the importance of restriction-modification systems in host adaptation.

is a major etiological agent of clinical and subclinical bovine mastitis. The versatile and adaptative evolutionary strategies of this bacterium have challenged mastitis control and prevention globally, and the high incidence of mastitis increases concerns about antimicrobial resistance (AMR) and zoonosis. This study aims to describe the evolutionary relationship between bovine intramammary infection (IMI)-associated and human pathogenic and further elucidate the specific genetic composition that leads to the emergence of successful bovine IMI-associated lineages.

A review of antimicrobial resistance in imported foods.

Antimicrobial resistance is one of the most serious threats to medical science. Food supply is recognized as a potential source of resistant bacteria, leading to the development of surveillance programs targeting primarily poultry, pork, and beef. These programs are limited in scope, not only in the commodities tested, but also in the organisms targeted (, , and ); consequently, neither the breadth of food products available nor the organisms that may harbour clinically relevant and (or) mobile resistance genes are identified.

Relative virulence of Staphylococcus aureus bovine mastitis strains representing the main Canadian spa types and clonal complexes as determined using in vitro and in vivo mastitis models.

Staphylococcus aureus is one of the main pathogens leading to both clinical and subclinical bovine mastitis in dairy cattle. Prediction of disease evolution based on the characteristics of Staph. aureus isolates that cause intramammary infections and understanding the host-pathogen interactions may improve management of mastitis in dairy herds.

Draft Genome Sequences of 113 Escherichia coli Strains Isolated from Intramammary Infections in Dairy Cattle.

is one of the most common etiological agents responsible for clinical bovine mastitis. Here, we report the draft genome sequences and annotations of 113 strains that were isolated from Holstein cows with intramammary infections in Canada.

Smart traceability for food safety.

Current food production faces a tremendous challenge due to the growing human population. The global population is estimated to reach 9 billion by 2050 with 70% more food being required. Safe food is an important dimension of food security, and food traceability across the supply chain is a key component of this.

Draft Genome Sequences of 27 Staphylococcus aureus Strains and 3 Species Strains Isolated from Bovine Intramammary Infections.

is one of the most common etiological agents responsible for contagious bovine mastitis. Here, we report the draft whole-genome sequences, with annotations, of 27 strains and 3 species strains that were isolated from Holstein cows with intramammary infection in Canada.

Identification of antimicrobial resistant bacteria from plant-based food products imported into Canada.

The role of plant-based foods in the epidemiology of antimicrobial resistance has been inadequately studied. In this investigation, resistant organisms from vegetables, fruits and spices imported into Canada were identified and characterized. A total of 143 products imported from primarily Asian and African countries were purchased from international markets in Saskatoon, Saskatchewan.

Characterization and evaluation of antimicrobial activity of actinonin against foodborne pathogens.

This study revealed the antimicrobial properties of actinonin against major foodborne pathogens, O157:H7, , Typhimurium, and . Among them, actinonin caused growth defect in Typhimurium and . Minimal inhibitory concentration (MIC) values of actinonin were determined by broth microdilution methods.