Prevalence and Characteristics of Phenicol-Oxazolidinone Resistance Genes in and Isolated from Food-Producing Animals and Meat in Korea.

The use of phenicol antibiotics in animals has increased. In recent years, it has been reported that the transferable gene mediates phenicol-oxazolidinone resistance. This study analyzed the prevalence and characteristics of phenicol-oxazolidinone resistance genes in and isolated from food-producing animals and meat in Korea in 2018.

Antimicrobial Resistance Profile of spp. Isolates from Retail Meat Samples under -Selective Conditions.

strains are widely present in the environment. Some antimicrobial-resistant strains of this genus have been implicated in infections acquired in hospitals. Genetic similarities have been reported between strains in nosocomial infections and those isolated from foods.

Characterization of oxazolidinone and phenicol resistance genes in non-clinical enterococcal isolates from Korea.

Objectives: To investigate the distribution and genetic characteristics of linezolid-resistant enterococci.

Methods: Enterococcus faecalis and Enterococcus faecium strains were isolated from pigs, equipment, grounds, and employees of 19 Korean swine farms in 2017. Antimicrobial susceptibility testing was then performed and linezolid resistance genes were detected via PCR.

Emergence of Transferable Gene-Carrying Colistin-Resistant Dessau ST14 Isolated from Retail Chicken Meat in Korea.

Colistin is an important antibiotic currently used to manage infections caused by multidrug-resistant pathogens in both humans and livestock animals. A new mobile colistin-resistance () gene was recently discovered; this discovery highlighted the need for rigorous monitoring of bacterial resistance against colistin. is one of the major pathogens responsible for foodborne illnesses; however, there is minimal information regarding the presence of genes in foodborne strains.

Characterization of Extended-Spectrum β-Lactamase-Producing Escherichia coli Isolated from Fresh Produce and Agricultural Environments in Korea.

Abstract: This study was conducted to characterize Escherichia coli strains and evaluate the spread of antimicrobial resistance among these strains from fresh produce and farm environments in Korea. We then conducted phenotypic and genetic studies on antimicrobial-resistant isolates. We determined the genetic epidemiological characteristics of isolates that produced extended-spectrum β-lactamase (ESBL) and confirmed plasmid transfer in isolates that carried blaCTX-M-type genes.

Characterization of Vancomycin-Resistant Enterococcus faecalis and Enterococcus faecium Isolated from Fresh Produces and Human Fecal Samples.

Increased enterococcal infections in hospitals and multidrug-resistant and vancomycin-resistant enterococci (VRE) isolated from humans, animals, and food sources raised public health concern on the presence of VRE in multiple sources. We performed a comparative analysis of the antimicrobial resistance and genetics of VRE isolates derived from fresh produce and human fecal samples. Of 389 Enterococcus isolates, 8 fecal and 3 produce isolates were resistant to vancomycin and teicoplanin; all harbored vanA gene.