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https://www.readbyqxmd.com/read/29237086/enterobacteriaceae-producing-oxa-48-like-carbapenemases-in-poland-2013-january-2017
#1
R Izdebski, A Baraniak, D Zabicka, M Machulska, P Urbanowicz, J Fiett, E Literacka, K Bojarska, A Kozinska, B Zieniuk, W Hryniewicz, M Gniadkowski
Objectives: To analyse OXA-48 (OXA-48/181)-type carbapenemase-producing Enterobacteriaceae reported in Poland from 2013 until January 2017. Methods: Bacterial isolates were typed by PFGE and MLST. Genes coding for OXA-48/181 types and other β-lactamases were amplified and sequenced. Mobile elements with blaOXA-48/181-like genes were PCR mapped. blaOXA-48/181-carrying plasmids were characterized by nuclease S1-hybridization profiling, transfer assays and PCR-based replicon typing, while the chromosomal location of the genes was confirmed by the I-CeuI analysis...
December 9, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/29209306/ctx-m-15-producing-e-coli-isolates-from-food-products-in-germany-are-mainly-associated-with-an-incf-type-plasmid-and-belong-to-two-predominant-clonal-e-coli-lineages
#2
Alexandra Irrgang, Linda Falgenhauer, Jennie Fischer, Hiren Ghosh, Elisabet Guiral, Beatriz Guerra, Silvia Schmoger, Can Imirzalioglu, Trinad Chakraborty, Jens A Hammerl, Annemarie Käsbohrer
Extended-spectrum beta-lactamases (ESBL) mediating resistance to 3rd generation cephalosporins are a major public health issue. As food may be a vehicle in the spread of ESLB-producing bacteria, a study on the occurrence of cephalosporin-resistantu Escherichia coli in food was initiated. A total of 404 ESBL-producing isolates were obtained from animal-derived food samples (e.g., poultry products, pork, beef and raw milk) between 2011 and 2013. As CTX-M-15 is the most abundant enzyme in ESBL-producing E. coli causing human infections, this study focusses on E...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29163817/characteristics-and-genetic-diversity-of-multi-drug-resistant-extended-spectrum-beta-lactamase-esbl-producing-escherichia-coli-isolated-from-bovine-mastitis
#3
Tariq Ali, Sadeeq Ur Rahman, Limei Zhang, Muhammad Shahid, Dandan Han, Jian Gao, Shiyao Zhang, Pamela L Ruegg, Umer Saddique, Bo Han
A characterization of the drug resistance profiles, identification of PCR-based replicon typing, and multilocus sequence typing (MLST) and analysis of 46 ESBL-producing Escherichia coli from cows with mastitis are described. All multidrug-resistant isolates of various phylogenetic groups (A = 31, B1= 3, B2 = 2, D = 10) were ESBL-producers of genotypes CTX-M-15 (29), CTX-M-55 (4), CTX-M-14 (4), CTX-M-3 (1), CTX-M-1 (1), TEM (22) and SHV (8) that were found on conjugative plasmids of diverse incompatibility groups (primarily IncF)...
October 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/29102103/frequency-antimicrobial-susceptibility-and-clonal-distribution-of-methicillin-resistant-staphylococcus-pseudintermedius-in-canine-clinical-samples-submitted-to-a-veterinary-diagnostic-laboratory-in-italy-a-3-year-retrospective-investigation
#4
G Ventrella, A Moodley, E Grandolfo, A Parisi, M Corrente, D Buonavoglia, L Guardabassi
In the last decade there has been a rapid global spread of methicillin-resistant Staphylococcus pseudintermedius (MRSP) clones displaying multidrug resistance in dogs. We investigated prevalence, antimicrobial susceptibility and clonal distribution of MRSP isolated from clinical canine samples between during 2011-2014. Following species identification by nuc PCR, MRSP were confirmed by the presence of mecA and characterized by antimicrobial susceptibility testing, Pulsed Field Gel Electrophoresis (PFGE), SCCmec typing, and Multi-Locus Sequence Typing (MLST) of a few isolates having distinct PFGE profiles...
November 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28953418/molecular-characterization-of-extended-spectrum-%C3%AE-lactamase-producing-escherichia-coli-isolates-from-milk-samples-of-dairy-cows-with-mastitis-in-bavaria-germany
#5
David Eisenberger, Anja Carl, Joachim Balsliemke, Peter Kämpf, Silke Nickel, Gesine Schulze, Giuseppe Valenza
The aim of this study was to determine the rate of extended-spectrum β-lactamase (ESBL)-producing microorganisms among Escherichia coli isolates causing bovine mastitis, including molecular characterization of these isolates. Therefore, a total of 490 bovine E. coli isolates from milk samples of dairy cows with mastitis were investigated for ESBL production by antimicrobial susceptibility testing, PCR-based detection, and sequencing of ESBL encoding genes, which were identified in 22 isolates (4.5%). Moreover, resistance to the fluoroquinolones enrofloxacin and marbofloxacin occurred in 15 of 22 ESBL-producing isolates (68...
September 27, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/28686503/characterization-of-carbapenem-resistant-escherichia-coli-isolates-through-the-whole-genome-sequencing-analysis
#6
Yanping Luo, Rong Luo, Hong Ding, Xiu Ren, Haipeng Luo, Ying Zhang, Liyan Ye, Shenghui Cui
Limited studies have characterized multiple carbapenem-resistant Escherichia coli isolates and compared their genetic characteristics through whole-genome sequencing (WGS) because of the scarcity of these isolates. In this study, we determined the prevalence of carbapenem resistance in 2,993 E. coli isolates collected from three Chinese hospitals. The carbapenem-resistant isolates were further characterized by WGS, and the molecular epidemiological characters and resistance mechanisms were explored through the publicly available platforms from the Center for Genomic Epidemiology...
July 7, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/28419868/ciprofloxacin-resistance-in-uropathogenic-escherichia-coli-isolates-causing-community-acquired-urinary-infections-in-bras%C3%A3-lia-brazil
#7
Rafaella Christina Rocha Moreira da Silva, Paulo de Oliveira Martins Júnior, Laura Fernandes Gonçalves, Vicente de Paulo Martins, Ana Beatriz Fabrício de Melo, André Pitondo-Silva, Tatiana Amabile de Campos
OBJECTIVES: Considering the global concern of ciprofloxacin resistance, the aim of this study was to evaluate the characteristics of ciprofloxacin-resistant (CIP-R) Escherichia coli isolated from patients with community-acquired urinary tract infections (UTIs) in Brasília, Brazil. METHODS: CIP-R E. coli isolated from different outpatients between July 2013 and April 2014 in a tertiary hospital were analysed for antibiotic resistance profile, phylotype, uropathogenic E...
June 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/28380311/spread-of-ctx-type-extended-spectrum-%C3%AE-lactamase-producing-escherichia-coli-isolates-of-epidemic-clone-b2-o25-st131-among-dogs-and-cats-in-japan
#8
Kumiko Kawamura, Tae Sugawara, Nao Matsuo, Kengo Hayashi, Chihiro Norizuki, Kiyoko Tamai, Takaaki Kondo, Yoshichika Arakawa
This study was performed to investigate the carriage rates of CTX-M-type extended-spectrum β-lactamase (ESBL)-producing Escherichia coli among ill companion animals in Japan. Among the 178 nonrepetitive E. coli isolates, including 131 from dogs and 47 from cats, collected between September and November 2015, 42 (23.6%) isolates from 29 dogs and 13 cats were identified as ESBL producers. The antimicrobial susceptibility, O serotype, phylogenetic group, β-lactamase genotype, plasmid replicon type, and sequence type (ST) of each isolate were analyzed...
April 5, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/28369408/wgs-based-surveillance-of-third-generation-cephalosporin-resistant-escherichia-coli-from-bloodstream-infections-in-denmark
#9
Louise Roer, Frank Hansen, Martin Christen Frølund Thomsen, Jenny Dahl Knudsen, Dennis Schrøder Hansen, Mikala Wang, Jurgita Samulioniené, Ulrik Stenz Justesen, Bent L Røder, Helga Schumacher, Claus Østergaard, Leif Percival Andersen, Esad Dzajic, Turid Snekloth Søndergaard, Marc Stegger, Anette M Hammerum, Henrik Hasman
Objectives: To evaluate a genome-based surveillance of all Danish third-generation cephalosporin-resistant Escherichia coli (3GC-R Ec ) from bloodstream infections between 2014 and 2015, focusing on horizontally transferable resistance mechanisms. Methods: A collection of 552 3GC-R Ec isolates were whole-genome sequenced and characterized by using the batch uploader from the Center for Genomic Epidemiology (CGE) and automatically analysed using the CGE tools according to resistance profile, MLST, serotype and fimH subtype...
July 1, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28368864/characterization-of-esbl-producing-escherichia-coli-recovered-from-companion-dogs-in-tai-an-china
#10
Song Li, Junhe Liu, Yufa Zhou, Zengmin Miao
INTRODUCTION: Animals are considered to be reservoirs of extended-spectrum beta-lactamase (ESBL)-producing bacteria, but few epidemiological data on ESBL-producing Escherichia coli urinary tract isolates in pet dogs are available in China. METHODOLOGY: This study was conducted to describe the prevalence and characterization of ESBL producers among E. coli urinary tract isolates from pet dogs in Tai'an, China. RESULTS: A total of 118 E. coli were obtained from urinary samples of 80 companion dogs suffering from acute or chronic cystitis, of which three isolates from different dogs were ESBL producers...
March 31, 2017: Journal of Infection in Developing Countries
https://www.readbyqxmd.com/read/27876781/first-identification-of-ndm-4-producing-escherichia-coli-st410-in-china
#11
Shangshang Qin, Mengmeng Zhou, Qijing Zhang, Hengxun Tao, Yafei Ye, Huizhi Chen, Lijuan Xu, Hui Xu, Ping Wang, Xianju Feng
No abstract text is available yet for this article.
November 23, 2016: Emerging Microbes & Infections
https://www.readbyqxmd.com/read/27572405/characterization-of-a-novel-inchi2-plasmid-carrying-tandem-copies-of-blactx-m-2-in-a-fosa6-harboring-escherichia-coli-sequence-type-410-strain
#12
Qinglan Guo, Baixing Ding, Thomas Jové, Nicole Stoesser, Vaughn S Cooper, Minggui Wang, Yohei Doi
The extended-spectrum β-lactamase gene blaCTX-M-2 is mainly associated with ISCR1 embedded in complex sul1-type integrons, but information on the genetic context of plasmids harboring the ISCR1-blaCTX-M-2 module remains limited. In this study, a blaCTX-M-2-harboring plasmid (pYD786-1) belonging to the sequence type 2 (ST2)-IncHI2 plasmid type and isolated from an Escherichia coli ST410 clinical strain was sequenced and analyzed. pYD786-1 belongs to the APEC-O1-R-type IncHI2 plasmids, which are widely distributed in human, poultry, and livestock strains...
November 2016: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/27357252/multilocus-sequence-typing-and-ctx-m-characterization-of-esbl-producing-e-coli-a-prospective-single-centre-study-in-lower-saxony-germany
#13
G Gerhold, M H Schulze, U Gross, W Bohne
The increasing prevalence of extended-spectrum β-lactamase (ESBL)-producing Gram-negative bacteria is a serious threat for current healthcare settings. In this study we investigated the molecular epidemiology of ESBL-producing E. coli at the University Medical Center Göttingen in Lower Saxony, Germany. All E. coli isolates with an ESBL phenotype were collected during a 6-month period in 2014. Multilocus sequence typing and CTX-M characterization were performed on 160 isolates. Of the ESBL-producing isolates 95·6% were CTX-M positive...
November 2016: Epidemiology and Infection
https://www.readbyqxmd.com/read/27328620/simultaneous-occurrence-of-mrsa-and-esbl-producing-enterobacteriaceae-on-pig-farms-and-in-nasal-and-stool-samples-from-farmers
#14
Julia Fischer, Katja Hille, Inga Ruddat, Alexander Mellmann, Robin Köck, Lothar Kreienbrock
Methicillin-resistant Staphylococcus aureus (MRSA) and extended-spectrum β-lactamase (ESBL) producing enterobacteria (ESBL-E) have emerged in livestock. This study prospectively investigates the prevalence of MRSA and ESBL-E on pig farms and in nasal and stool samples from farmers and compares molecular characteristics of these ESBL-E isolates. In 2014, samples were derived at 51 pig farms in Germany. Per farm, five dust and five fecal samples were collected; one nasal and one stool sample were retrieved from farmers...
February 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/27314838/veterinary-hospital-dissemination-of-ctx-m-15-extended-spectrum-beta-lactamase-producing-escherichia-coli-st410-in-the-united-kingdom
#15
Dorina Timofte, Iuliana Elena Maciuca, Nicola J Williams, Andrew Wattret, Vanessa Schmidt
We characterized extended-spectrum beta-lactamases (ESBLs) and plasmid-mediated quinolone resistance (PMQR) in 32 Escherichia coli extended spectrum cephalosporin (ESC)-resistant clinical isolates from UK companion animals from several clinics. In addition, to investigate the possible dissemination of ESBL clinical isolates within a veterinary hospital, two ESBL-producing E. coli isolates from a dog with septic peritonitis and a cluster of environmental ESC-resistant E. coli isolates obtained from the same clinic and during the same time period, as these two particular ESBL-positive clinical isolates, were also included in the study...
October 2016: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/27208899/circulation-of-clonal-populations-of-fluoroquinolone-resistant-ctx-m-15-producing-escherichia-coli-st410-in-humans-and-animals-in-germany
#16
Linda Falgenhauer, Can Imirzalioglu, Hiren Ghosh, Konrad Gwozdzinski, Judith Schmiedel, Katrin Gentil, Rolf Bauerfeind, Peter Kämpfer, Harald Seifert, Geovana Brenner Michael, Stefan Schwarz, Yvonne Pfeifer, Guido Werner, Michael Pietsch, Uwe Roesler, Beatriz Guerra, Jennie Fischer, Hannah Sharp, Annemarie Käsbohrer, Alexander Goesmann, Katja Hille, Lothar Kreienbrock, Trinad Chakraborty
Multidrug-resistant Escherichia coli encoding CTX-M-type extended-spectrum β-lactamases (ESBLs) are isolated in increasing numbers from humans, companion animals and livestock, raising concern regarding the exchange and spread of isolates in these populations. In this study, whole-genome sequencing of CTX-M-15-producing E. coli isolates recently sampled from humans, companion animals, livestock and farm environments was performed. In total, 26 different sequence types (STs) were detected, of which ST410 was the most frequent and was the only ST present in all populations studied...
June 2016: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/26824955/first-characterization-of-ctx-m-15-producing-escherichia-coli-strains-belonging-to-sequence-type-st-410-st224-and-st1284-from-commercial-swine-in-south-america
#17
Ketrin C Silva, Marina Moreno, Carlos Cabrera, Beny Spira, Louise Cerdeira, Nilton Lincopan, Andrea M Moreno
We report for the first time the isolation of CTX-M-15-producingEscherichia colistrains belonging to sequence type (ST) 410, ST224, and ST1284 in commercial swine in Brazil. TheblaCTX-M-15gene was located on F-::A9::B1 and C1::A9::B1 IncF-type plasmids, surrounded by a new genetic context comprising the IS26insertion sequence truncated with the ISEcp1element upstream ofblaCTX-M-15 These results reveal that commercial swine have become a new reservoir of CTX-M-15-producing bacteria in South America.
April 2016: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/26656065/clonal-spread-and-interspecies-transmission-of-clinically-relevant-esbl-producing-escherichia-coli-of-st410-another-successful-pandemic-clone
#18
COMPARATIVE STUDY
Katharina Schaufler, Torsten Semmler, Lothar H Wieler, Michael Wöhrmann, Ramani Baddam, Niyaz Ahmed, Kerstin Müller, Axel Kola, Angelika Fruth, Christa Ewers, Sebastian Guenther
Clinically relevant extended-spectrum beta-lactamase (ESBL)-producing multi-resistant Escherichia coli have been on the rise for years. Initially restricted to mostly a clinical context, recent findings prove their prevalence in extraclinical settings independent of the original occurrence of antimicrobial resistance in the environment. To get further insights into the complex ecology of potentially clinically relevant ESBL-producing E. coli, 24 isolates from wild birds in Berlin, Germany, and 40 ESBL-producing human clinical E...
January 2016: FEMS Microbiology Ecology
https://www.readbyqxmd.com/read/26654217/molecular-characterisation-of-extended-spectrum-%C3%AE-lactamase-esbl-producing-escherichia-coli-isolates-from-hospital-and-ambulatory-patients-in-germany
#19
Michael Pietsch, Christoph Eller, Constanze Wendt, Martin Holfelder, Linda Falgenhauer, Angelika Fruth, Tobias Grössl, Rasmus Leistner, Giuseppe Valenza, Guido Werner, Yvonne Pfeifer
The increase of Escherichia coli producing extended-spectrum β-lactamases (ESBL) in hospitals and their emergence as intestinal colonisers of healthy humans is of concern. Transmission ways and the extent of spread of distinct E. coli clones or ESBL genes among humans and animals via the food chain or the environment is a matter of debate. In this study we determined ESBL genotypes in E. coli isolates (n=233) resistant to 3rd generation cephalosporins from hospitals and medical practices using PCR and sequencing...
February 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/26607057/first-identification-of-an-imi-1-carbapenemase-producing-colistin-resistant-enterobacter-cloacae-in-china
#20
Liang Huang, Xiaohui Wang, Yu Feng, Yi Xie, Liping Xie, Zhiyong Zong
BACKGROUND: Carbapenem resistance among the Enterobacteriaceae is a serious healthcare challenge. bla IMI is a carbapenemase gene mediating resistance to carbapenems but has not been commonly found. A bla IMI-carrying Enterobacter cloacae, which was also resistant to colistin, is reported here. FINDINGS: E. cloacae strain WCHECl-1060 was recovered from a blood sample of a leukemia patient, who was not previously exposed to colistin. Strain WCHECl-1060 belongs to a new sequence type, ST410, and was resistant to carbapenems and colistin but was susceptible to third-generation cephalosporins...
2015: Annals of Clinical Microbiology and Antimicrobials
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