نتایج جستجو برای: mcr 1

تعداد نتایج: 2753510  

2018
Ana Constança Mendes Ângela Novais Joana Campos Carla Rodrigues Cláudia Santos Patrícia Antunes Helena Ramos Luísa Peixe

We describe a hospital-based outbreak caused by multidrug-resistant, Klebsiella pneumoniae carbapenemase 3-producing, mcr-1-positive K. pneumoniae sequence type 45 in Portugal. mcr-1 was located in an IncX4 plasmid. Our data highlight the urgent need for systematic surveillance of mcr-1 to support adequate therapeutic choices in the nosocomial setting.

2017
Jing Wang Zhen-Bao Ma Zhen-Ling Zeng Xue-Wen Yang Huang Ying Jian-Hua Liu

Since our first identification of plasmid-mediated colistin resistance gene mcr-1 in 2015 (Liu et al., 2016), it has been described in human clinics, domestic animals, foods, and the environment worldwide (Schwarz & Johnson, 2016). Although it is still rare, the emergence of mcr-1 in wild animals is of great concern. We summarized two previous reports on mcr-1 in wild birds from Lithuania and A...

2017
Erik Snesrud Ana C. Ong Brendan Corey Yoon I. Kwak Robert Clifford Todd Gleeson Shannon Wood Timothy J. Whitman Emil P. Lesho Mary Hinkle Patrick McGann

The emergence of a transferable colistin resistance gene (mcr-1) is of global concern. The insertion sequence ISApl1 is a key component in the mobilization of this gene, but its role remains poorly understood. Six Escherichia coli isolates were cultured from the same patient over the course of 1 month in Germany and the United States after a brief hospitalization in Bahrain for an unconnected i...

2016
Robert G. Deiss Michael Bolaris Angel Wang Scott G. Filler

tin concentration of only 1 μg/mL to minimize false-negative results. However, some colistin-susceptible organisms might grow on MHC1 (<5% in our study), resulting in the low PCR-positive rate for mcr-1 among isolates. Exact epidemiology of the mcr-1 gene is unknown, indicating a need to conduct accurate surveillance of the gene’s prevalence in humans. Additional mechanisms unique to the mcr-1 ...

2017
Nenad Macesic Daniel Green Zheng Wang Sean B. Sullivan Kevin Shim Sarah Park Susan Whittier E. Yoko Furuya Angela Gomez-Simmonds Anne-Catrin Uhlemann

The spread of mcr-1 in the United States remains poorly defined. mcr-1-producing Escherichia coli that also carried blaSHV-12 was detected in a hospitalized patient. No additional cases were identified during screening of 801 Gram-negative isolates. Genomic sequencing identified an IncX4 mcr-1- harboring plasmid and ST117 clonal background associated with avian pathogenic E coli.

Journal: :Antimicrobial agents and chemotherapy 2016
Hua Yu Fen Qu Bin Shan Bin Huang Wei Jia Cha Chen Aiqing Li Minhui Miao Xin Zhang Chunmei Bao Yunmin Xu Kalyan D Chavda Yi-Wei Tang Barry N Kreiswirth Hong Du Liang Chen

The spread of the plasmid-mediated colistin resistance gene, mcr-1, into carbapenem-resistant Enterobacteriaceae (CRE) clinical isolates poses a significant threat to global health. Here we report the identification of three mcr-1-harboring carbapenem-resistant Escherichia coli strains, collected from three patients in two provinces in China. Our results show that mcr-1-harboring CRE strains ha...

Journal: :Antimicrobial agents and chemotherapy 2016
Aiqing Li Yong Yang Minhui Miao Kalyan D Chavda José R Mediavilla Xiaofang Xie Ping Feng Yi-Wei Tang Barry N Kreiswirth Liang Chen Hong Du

Here we completely sequenced four mcr-1-haboring plasmids, isolated from two extended-spectrum-β-lactamase (ESBL)-producing Escherichia coli and two carbapenemase-producing Klebsiella pneumoniae clinical isolates. The mcr-1-harboring plasmids from an E. coli sequence type 2448 (ST2448) isolate and two K. pneumoniae ST25 isolates were identical (all pMCR1-IncX4), belonging to the IncX4 incompati...

2017
Nathalie Tijet Diego Faccone Melina Rapoport Christine Seah Fernando Pasterán Paola Ceriana Ezequiel Albornoz Alejandra Corso Alejandro Petroni Roberto G Melano

We have characterized nine mcr-1-harboring plasmids from clinical Escherichia coli isolates previously described in Argentina and Canada. Three of these plasmids carried a mcr-1-variant called here mcr-1.5. All these E. coli isolates were not clonally related and were recovered in different years and locations. However, their mcr-1-harboring plasmids showed high identity among them and to other...

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