Antibiotic Resistance/Susceptibility Profiles of Strains from Cheese, and Genome Analysis for Antibiotic Resistance Genes.

In food, bacteria carrying antibiotic resistance genes could play a prominent role in the spread of resistance. populations can become large in a number of fermented foods, yet the antibiotic resistance properties of this species have been little studied. In this work, the resistance/susceptibility (R/S) profile of strains ( = 30) from cheese to 16 antibiotics was determined by broth microdilution.

Genomic Features of Antimicrobial Resistance in Isolated from Dogs with Pyoderma in Argentina and the United States: A Comparative Study.

is the most common opportunistic pathogen in dogs and methicillin resistance (MRSP) has been identified as an emerging problem in canine pyoderma. Here, we evaluated the antimicrobial resistance (AMR) features and phylogeny of isolated from canine pyoderma cases in Argentina ( = 29) and the United States ( = 29). 62% of isolates showed multi-drug resistance.

First report of Staphylococcus pseudintermedius ST71-SCCmec III and ST45-ΨSCCmec from canine pyoderma in Argentina.

Staphylococcus pseudintermedius is an opportunistic pathogen commonly associated with skin infections in dogs. Twenty-three methicillin-resistant S. pseudintermedius (MRSP) isolated in Argentina from dogs with pyoderma were analyzed using whole genome sequencing (WGS) and classified into sequence types (ST) by multilocus sequence typing (MLST) and staphylococcal chromosome cassette mec (SCCmec) types.

Antimicrobial resistance studies in staphylococci and streptococci isolated from cows with mastitis in Argentina.

Background: and are the main cause of clinical mastitis in dairy cattle in Argentina, whereas coagulase-negative staphylococci (CNS) and environmental streptococci are the main cause of subclinical mastitis. Bacteria isolated from infected animals show increasing antimicrobial resistance.

Objectives: This study aims to determine the antimicrobial resistance of staphylococci and streptococci isolated from milk with mastitis, and to genotypically characterize the methicillin-resistant (MR) staphylococci.

Antimicrobial resistance and genomic characterization of serovar Senftenberg isolates in production animals from the United States.

In the USA, subspecies serovar Senftenberg is among the top five serovars isolated from food and the top 11 serovars isolated from clinically ill animals. Human infections are associated with exposure to farm environments or contaminated food. The objective of this study was to characterize Senftenberg isolates from production animals by analyzing phenotypic antimicrobial resistance profiles, genomic features and phylogeny.

Antimicrobial resistance and genomic characterization of Salmonella Dublin isolates in cattle from the United States.

Salmonella enterica subspecies enterica serotype Dublin is a host-adapted serotype in cattle, associated with enteritis and systemic disease. The primary clinical manifestation of Salmonella Dublin infection in cattle, especially calves, is respiratory disease. While rare in humans, it can cause severe illness, including bacteremia, with hospitalization and death.

First isolation of a methicillin-resistant from bovine mastitis in Argentina.

This research communication describes the first isolation of a methicillin-resistant (MRSA) from cow's mastitic milk in Argentina. Bovine mastitis causes important economic losses in the dairy industry and the most commonly isolated bacteria from bovine mastitis are . The A gene present in MRSA bacteria confers resistance to almost all -lactam antibiotics, the most frequent drugs used in bovine mastitis therapy.

Detection of a mecC-positive Staphylococcus saprophyticus from bovine mastitis in Argentina.

Introduction: Bovine mastitis causes important economic losses in the dairy industry. Coagulase-negative staphylococci (CNS) are a group of bacteria commonly isolated from bovine mastitis and can display resistance to a wide range of antimicrobial agents.

Objectives: The objective of this study was to determine staphylococcal resistance towards β-lactam, macrolide and lincosamide antimicrobials in quarters previously treated with third-generation cephalosporin and after lincosamide intramammary therapy.

Molecular identification of coagulase-negative staphylococci isolated from bovine mastitis and detection of β-lactam resistance.

Introduction: Bovine mastitis is a frequent cause of economic loss in dairy herds. Coagulase-negative staphylococci (CoNS) are increasing in importance as causeof bovine intramammary infection (IMI) throughout the world in recent years. CoNShave been isolated from milk samples collected from cows with clinical andsubclinical mastitis in several countries.