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Novel insertion sequence ISChh1-like mediating acquisition of optrA gene in foodborne pathogen Campylobacter coli of swine origin

Veterinary Microbiology, 2021
The optrA gene encodes an ABC-F protein which confers cross-resistance to oxazolidinones and phenicols, and its transmission has so far been associated with multiple transposable elements, including IS1216E, prophages, ICEs and Tn558. Here, we identified an optrA gene flanked by two copies of a novel insertion sequence ISChh1-like in the same direction
Yizhi, Tang   +7 more
openaire   +2 more sources

Interregional spread in Spain of linezolid-resistant Enterococcus spp. isolates carrying the optrA and poxtA genes

International Journal of Antimicrobial Agents, 2020
The emergence of linezolid-resistant Enterococcus spp. (LRE) due to transferable resistance determinants is a matter of concern. To understand the contribution of the plasmid-encoded optrA and poxtA genes to the emergence of LRE, clinical isolates from different Spanish hospitals submitted to the Spanish Reference Laboratory from 2015-2018 were ...
Zaira Moure   +11 more
openaire   +2 more sources

Detection of the optrA Gene Among Polyclonal Linezolid-Susceptible Isolates of Enterococcus faecalis Recovered from Community Patients

Microbial Drug Resistance, 2022
Dispersion of transferable oxazolidinone resistance genes among enterococci poses a serious problem to human health. Prompt detection of bacteria carrying these genes is crucial to avoid their spread to multidrug-resistant bacteria. The aim of the study was to describe the presence of optrA-positive isolates among enterococci in a Spanish hospital, and
Carlos, Rodríguez-Lucas   +7 more
openaire   +2 more sources

Hyper-thermophilic anaerobic pretreatment enhances the removal of transferable oxazolidinone and phenicol cross-resistance gene optrA in enterococci

Waste Management, 2023
The extensive use of florfenicol in poultry industry results in the emergence of optrA gene, which also confers resistance to clinically important antibiotic linezolid. This study investigated the occurrence, genetic environments, and removal of optrA in enterococci in mesophilic (37 °C) and thermophilic (55 °C) anaerobic digestion systems, and a hyper-
Tiantian Tian   +7 more
openaire   +2 more sources

Characterization of cross-resistance gene optrA-carrying Campylobacter coli

Veterinary Microbiology
Campylobacter is a significant foodborne pathogen causing human campylobacteriosis. The optrA gene, which encodes an ABC-F protein, confers cross-resistance to oxazolidinones and phenicols, and recent studies have identified the emergence of optrA in Campylobacter. However, detailed information of optrA- carrying C. coli from food-producing animals and
Jin, Kang   +10 more
openaire   +2 more sources

Detection of novel oxazolidinone and phenicol resistance gene optrA in enterococcal isolates from food animals and animal carcasses

Veterinary Microbiology, 2017
Altogether 7720 Enterococcus faecalis and 3939 E. faecium isolated from food animals and animal carcasses during 2003-2014 in Korea were investigated to determine if linezolid-resistant (LR) enterococci (≥8μg/ml) are present. Overall, 12 E. faecalis and 27 E.
Migma Dorji, Tamang   +9 more
openaire   +2 more sources

Rapid emergence of highly variable and transferable oxazolidinone and phenicol resistance gene optrA in German Enterococcus spp. clinical isolates

International Journal of Antimicrobial Agents, 2018
The number of linezolid-resistant Enterococcus spp. isolates received by the National Reference Centre for Staphylococci and Enterococci in Germany has been increasing since 2011. Although the majority are E. faecium, clinical linezolid-resistant E. faecalis have also been isolated.
Jennifer K, Bender   +4 more
openaire   +2 more sources

Prevalence and characterization of oxazolidinone and phenicol cross-resistance gene optrA in enterococci obtained from anaerobic digestion systems treating swine manure

Environmental Pollution, 2020
The use of the phenicol antibiotic florfenicol in livestock can select for the optrA gene, which also confers resistance to the critically important oxazolidinone antibiotic linezolid. However, the occurrence and dissemination of florfenicol and linezolid cross-resistance genes in anaerobic treatment systems for livestock waste are unknown. Herein, the
Xiao-Xiao, Yang   +6 more
openaire   +2 more sources

Identification of a multidrug resistance genomic island harboring a nonfunctional optrA gene in Campylobacter coli of chicken origin

Veterinary Microbiology
Campylobacter spp., such as Campylobacter jejuni and Campylobacter coli, are important zoonotic Gram-negative pathogens that cause acute intestinal diseases in humans. In this study, a retrospective analysis was conducted on previously collected Campylobacter isolates from antimicrobial resistance surveillance. A total of 29 optrA-positive C.
Liangliang, Wang   +9 more
openaire   +2 more sources

Development of a multiplex-PCR to simultaneously detect acquired linezolid resistance genes cfr, optrA and poxtA in enterococci of clinical origin

Journal of Microbiological Methods, 2019
Linezolid-resistant enterococcus spp. are increasingly recognized by diagnostic laboratories. Resistance can be mediated by the expression of cfr, optrA or poxtA. We developed a multiplex-PCR to simultaneously detect all three genes. The PCR is suitable for microbiological diagnostics in order to restrict further spread of resistances in enterococci.
Jennifer K, Bender   +3 more
openaire   +2 more sources

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