Results 61 to 70 of about 11,015 (171)

Prevalence of Plasmid-Mediated Quinolone Resistance Genes among Ciprofloxacin-Nonsusceptible Escherichia coli and Klebsiella pneumoniae Isolated from Blood Cultures in Korea

Canadian Journal of Infectious Diseases and Medical Microbiology, 2014
OBJECTIVES:To analyze the prevalence of plasmid-mediated quinolone resistance (PMQR) determinants in ciprofloxacin-nonsusceptible Escherichia coli and Klebsiella pneumoniae isolated from patients at a tertiary care hospital in Korea.
Hee Young Yang, You Sun Nam, Hee Joo Lee
doaj   +1 more source

Presence of qnr gene in Escherichia coli and Klebsiella pneumoniae resistant to ciprofloxacin isolated from pediatric patients in China

BMC Infectious Diseases, 2008
Background Quinolone resistance in Enterobacteriaceae results mainly from mutations in type II DNA topoisomerase genes and/or changes in the expression of outer membrane and efflux pumps.
Wang Chuanqing, Zhang Hong, Deng Qiulian, Ding Hui, Deng Li, Chen Yuan, Wang Yi, Lu Quan, Yang Yonghong, Wang Aihua, Liu Lan, Xu Xiwei, Wang Li, Shen Xuzhuang   +13 more
doaj   +1 more source

Antibiotics in Veterinary Ophthalmology: Resistance, Stewardship, and Emerging Antibiotic‐Sparing Strategies

Veterinary Ophthalmology, Volume 29, Issue 4, July 2026.
ABSTRACT Antimicrobial resistance (AMR) is a growing challenge in veterinary ophthalmology, particularly in cases of bacterial keratitis, where progressive stromal infection can threaten vision and globe integrity within hours to days. This review synthesizes current evidence on pathogen distribution, antimicrobial susceptibility profiles, multidrug ...
Lionel Sebbag, Oren Pe'er
wiley   +1 more source

Functional Identification and Evolutionary Analysis of Two Novel Plasmids Mediating Quinolone Resistance in Proteus vulgaris

Microorganisms, 2020
Plasmid-mediated quinolone resistance (PMQR) remains one of the main mechanisms of bacterial quinolone resistance and plays an important role in the transmission of antibiotic resistance genes (ARGs). In this study, two novel plasmids, p3M-2A and p3M-2B,
Hongyang Zhang, Mingding Chang, Xiaochen Zhang, Peiyan Cai, Yixin Dai, Tongzhen Song, Zhenzhou Wu, Haijin Xu, Mingqiang Qiao   +8 more
doaj   +1 more source

Genomic epidemiology and lineage‐specific risk stratification of tet(X4)‐mediated tigecycline resistance along the pork production chain: A One Health perspective

iMetaOmics, Volume 3, Issue 2, June 2026.
Genome surveillance across a swine‐associated One Health continuum in China shows that slaughterhouses act as major enrichment nodes for tet(X4)‐mediated tigecycline resistance, driven by putative clonal transmission and stable plasmid backbones. Integrating global datasets enables lineage‐specific risk stratification, highlighting key control points ...
Qin Wang, Qiwu Yuan, Xuan Chen, Yujing Zhong, Ke Wu, Renqiao Wen, Luya Liu, Xiaoqin Wang, Cui Li, Hongning Wang, Changwei Lei   +10 more
wiley   +1 more source

Assessment of a phenotypic algorithm to detect plasmid-mediated quinolone resistance in Enterobacteriaceae [PDF]

Journal of Antimicrobial Chemotherapy, 2015
Peer ...
Rodríguez-Martínez, José-Manuel, López-Cerero, Lorena, Díaz-de-Alba, Paula, Chamizo-López, Francisco Javier, Polo-Padillo, Juan, Pascual, Álvaro   +5 more
openaire   +4 more sources

Emerging Dissemination of blaCTX‐M‐65 in Bovine E. coli in Spain Associated With IncHI2 Plasmids

MicrobiologyOpen, Volume 15, Issue 3, June 2026.
The resistome in ESBL/AmpC‐producing E. coli in livestock was diverse and dominated by plasmid‐borne genes Detection of host‐independent dissemination of AMR determinants mediated by shared plasmid types First report in Spanish cattle of blaCTX‐M‐65 on IncHI2 plasmids, an under‐reported ESBL in Europe Identification of potentially zoonotic clones in ...
Medelin Ocejo, Beatriz Oporto, Ana Hurtado   +2 more
wiley   +1 more source

Prevalence and Expression of the Plasmid-Mediated Quinolone Resistance Determinant qnrA1 [PDF]

Antimicrobial Agents and Chemotherapy, 2007
ABSTRACT Since its discovery, qnrA has been found in most common Enterobacteriaceae . Ciprofloxacin MICs conferred by different qnrA -positive plasmids could range from 0.1 μg/ml to 2 μg/ml in Escherichia coli J53.
Xiaogang, Xu, Shi, Wu, Xinyu, Ye, Yang, Liu, Wanliang, Shi, Yingyuan, Zhang, Minggui, Wang   +6 more
openaire   +2 more sources

Mechanisms of Resistance to Quinolones and Epidemiological Significance of Salmonella spp.

Acta Veterinaria, 2016
Bacteria develop resistance to antimicrobial agents by a number of different mechanisms. The resistance to (fluoro)quinolones in Salmonella is of particular importance especially if therapy in humans is required.
Velhner Maja
doaj   +1 more source

The Landscape of Salmonella enterica Serovar Gallinarum–Pullorum Antimicrobial Resistance in Bangladesh's Poultry Industry: A Combined Phenotypic and Molecular Study

MicrobiologyOpen, Volume 15, Issue 3, June 2026.
Salmonella enterica serovar Gallinarum–Pullorum isolated from chickens reveals a critical 89.13% prevalence of multidrug resistance. High phenotypic resistance to amoxicillin and tetracycline is genetically underpinned by a robust presence of resistance‐conferring genes (notably tetA, sul1, and blaCMY), highlighting a significant zoonotic threat to ...
Md. Masuk Rahman Kingshuk, Shanzida Binte Alam, Md. Shajedur Rahman, Md. Nurnoby Islam   +3 more
wiley   +1 more source