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Antimicrobial Susceptibility of Enterococcus Isolates from Cattle and Pigs in Portugal: Linezolid Resistance Genes optrA and poxtA

Antibiotics, 2022
Enterococci are part of the commensal gut microbiota of mammals, with Enterococcus faecalis and Enterococcus faecium being the most clinically relevant species. This study assesses the prevalence and diversity of enterococcal species in cattle (n = 201) and pig (n = 249) cecal samples collected in 2017.
Ana Amaro, Célia Leão, Maria de Lurdes Tavares Clemente   +2 more
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Detection of the enterococcal oxazolidinone/phenicol resistance gene optrA in Campylobacter coli

Veterinary Microbiology, 2020
The transferable optrA gene encodes an ABC-F protein which confers resistance to oxazolidinones and phenicols, and has so far been detected exclusively in Gram-positive bacteria, including enterococci, staphylococci and streptococci. Here, we identified for the first time the presence of optrA in naturally occurring Gram-negative bacteria.
Dejun, Liu, Dawei, Yang, Xiao, Liu, Xing, Li, Andrea T, Feßler, Zhangqi, Shen, Jianzhong, Shen, Stefan, Schwarz, Yang, Wang   +8 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, Noelia Lara, Mercedes Marín, Pedro J. Sola-Campoy, Verónica Bautista, Frederic Gómez-Bertomeu, Cristina Gómez-Dominguez, María Pérez-Vázquez, Belén Aracil, José Campos, Emilia Cercenado, Jesús Oteo-Iglesias   +11 more
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Linezolid-resistant ST872 Enteroccocus faecium harbouring optrA and cfr (D) oxazolidinone resistance genes

International Journal of Antimicrobial Agents, 2020
Letter to the ...
Stanley Pang, Peter Boan, Terence Lee, Shane Gangatharan, Shu Jin Tan, Denise Daley, Yung Thin Lee, Geoffrey W. Coombs   +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, Xiaoxiao Yang, Shihai Liu, Ziming Han, Wei Qiao, Jiuyi Li, Min Yang, Yu Zhang   +7 more
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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, Yan, Lai, Xingyuan, Wang, Changwei, Lei, Chao, Li, Linghan, Kong, Yulong, Wang, Hongning, Wang   +7 more
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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, Shuigen, Wan, Wenbo, Zhao, Shihong, Li, Wenjun, Li, Hao, Li, Yong, Liu, Hexiang, Huang, Chunyan, Xu, Xiang-Dang, Du, Hong, Yao   +10 more
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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, Dong Chan, Moon, Su-Ran, Kim, Hee Young, Kang, Kichan, Lee, Hyang-Mi, Nam, Geum-Chan, Jang, Hee-Soo, Lee, Suk-Chan, Jung, Suk-Kyung, Lim   +9 more
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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, Fan, Li, Ting, Liu, Chen, Ouyang, Xiaoyue, Wang, Meifang, Li, Zhiyu, Huang, Jinhu, Huang, Liping, Wang, Xiaoming, Wang   +9 more
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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, Carola, Fleige, Dominik, Lange, Ingo, Klare, Guido, Werner   +4 more
openaire   +2 more sources