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https://www.readbyqxmd.com/read/28650688/multidrug-resistant-enterobacteriaceae-in-lebanese-hospital-wastewater-implication-in-the-one-health-concept
#1
Ziad Daoud, Jina Farah, Elie S Salem, Khalil El Kfoury, Elias Dahdouh, Khalil Masri, Claude Afif, Roula M Abdel-Massih, Ghassan M Matar
Extended-spectrum beta-lactamases (ESBL) and carbapenemase-producing organisms pose severe problems for hospitalized patients. In the absence of efficient sanitation and sewage disposal, the risks for transmission of hospital organisms into the community are high. Our objectives were to study the occurrence and mechanisms of resistance of multidrug-resistant gram-negative bacilli in two Lebanese hospital sewage treatment plants. Wastewater samples were collected, filtered, and cultivated on MacConckey+cefotaxime agars...
June 26, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/28650275/first-description-of-blandm-7-carried-on-an-incx4-plasmid-in-escherichia-coli-st679-isolated-in-spain
#2
Paula Espinal, Elisenda Miró, Concepción Segura, Laura Gómez, Virginia Plasencia, Pere Coll, Ferran Navarro
This study describes the molecular characterization of an NDM-7 carbapenemase-producing Escherichia coli strain Ec188, recovered from a rectal swab of a male patient who had travelled to Pakistan before his hospitalization at the Hospital del Mar in Barcelona, Spain. The Ec188 isolate, assigned to a new multilocus sequence type ST679, was resistant to all beta-lactams, aminoglycosides (gentamicin, tobramycin, and with reduced susceptibility to amikacin), and ciprofloxacin. The blaNDM-7 gene was located on a 50 kb IncX4 plasmid (pEc188-NDM7), both in the original and transconjugant strains...
June 26, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/28648181/a-highly-sensitive-carbapenemase-assay-using-laser-desorption-ionization-mass-spectrometry-based-on-a-parylene-matrix-chip
#3
Jong-Min Park, Jo-Il Kim, Joo-Yoon Noh, Mira Kim, Min-Jung Kang, Jae-Chul Pyun
A quantitative carbapenemase assay was developed using laser desorption/ionization mass spectrometry (LDI-MS) based on a parylene-matrix chip. As a first step, the reproducibility (spot-to-spot, shot-to-shot, and day-to-day) of LDI-MS based on a parylene-matrix chip and the quantification ranges for four carbapenem antibiotics (doripenem, ertapenem, imipenem, and meropenem) were determined. A carbapenem-susceptibility test was performed using the four carbapenems and 51 bacterial strains that displayed (1) carbapenem resistance with carbapenemase, (2) carbapenem resistance without carbapenemase, or (3) carbapenem susceptibility...
September 2017: Enzyme and Microbial Technology
https://www.readbyqxmd.com/read/28647532/carbapenem-resistant-enterobacteriaceae-in-the-community-a-scoping-review
#4
REVIEW
Ana M Kelly, Barun Mathema, Elaine L Larson
Carbapenem antibiotics are used as a last resort to treat serious Gram-negative bacteria (GNB) infections, however carbapenemase-producing strains of GNB have emerged as a major source of resistance. Owing to the highly transmissible nature of plasmid-borne carbapenemases, numerous reports have warned about the likely spread into the community from healthcare settings. Since the prevalence of carbapenem-resistant Enterobacteriaceae (CRE) in the community is largely unknown, we conducted a scoping review of the literature to assess the percentage of CRE isolates that could be associated with the community...
June 21, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28643488/multidrug-resistance-mechanisms-of-carbapenem-resistant-klebsiella-pneumoniae-strains-isolated-in-chongqing-china
#5
Jinrong Yan, Shuli Pu, Xiaojiong Jia, Xiuyu Xu, Shuangshuang Yang, Jing Shi, Shan Sun, Liping Zhang
BACKGROUND: Carbapenem-resistant Klebsiella pneumoniae (CRKP) is considered a serious global threat. However, little is known regarding the multidrug resistance (MDR) mechanisms of CRKP. This study investigated the phenotypes and MDR mechanisms of CRKP and identified their clonal characteristics. METHODS: PCR and sequencing were utilized to identify antibiotic resistance determinants. Integron gene cassette arrays were determined by restriction fragment length polymorphism (RFLP) analysis...
September 2017: Annals of Laboratory Medicine
https://www.readbyqxmd.com/read/28642140/emergence-of-carbapenem-resistant-enterobacteriaceae-isolated-from-patients-in-a-university-hospital-in-saudi-arabia-epidemiology-clinical-profiles-and-outcomes
#6
Fawzia E Alotaibi, Elham E Bukhari, Maha M Al-Mohizea, Taghreed Hafiz, Eman Bin Essa, Yasmeen I AlTokhais
Carbapenemase-producing Enterobacteriaceae have been steadily spreading worldwide during the last decade. Nine patients were identified prospectively and were followed during their hospitalization course to identify the epidemiology, clinical profiles and outcomes. These patients had one or more cultures positive for a CRE isolate, contributing to a total of eleven positive cultures from various sites without including duplicates of isolates obtained from the same site. Isolates from these patients included five Klebseilla pneumoniae, three Escherichia coli, and one Enterobacter aerogenes...
June 19, 2017: Journal of Infection and Public Health
https://www.readbyqxmd.com/read/28642139/clinical-characteristics-and-epidemiology-of-sepsis-in-the-neonatal-intensive-care-unit-in-the-era-of-multi-drug-resistant-organisms-a-retrospective-review
#7
Dawood Yusef, Tala Shalakhti, Samah Awad, Hana'a Algharaibeh, Wasim Khasawneh
BACKGROUND: Sepsis in the neonatal intensive care unit (NICU) remains one of the most significant causes of morbidity and mortality, especially for preterm newborns. Multi-drug resistant organisms (MDROs) are emerging as important pathogens that cause neonatal sepsis in NICU. Therefore, studying the epidemiology, clinical features, and outcome caused by MDROs vs. non-MDROs, and identifying risk factors that may predispose patients to sepsis by MDROs are important. METHODS: Episodes of blood culture-proven sepsis (age: 0-90 days) in the NICU at our institution from January 2012 to December 2015 were retrospectively reviewed...
June 9, 2017: Pediatrics and Neonatology
https://www.readbyqxmd.com/read/28639245/biofilm-forming-ability-and-clonality-in-acinetobacter-baumannii-strains-isolated-from-urine-samples-and-urinary-catheters-in-different-european-hospitals
#8
Claudia Vuotto, Filipa Grosso, Francesca Longo, Maria Pia Balice, Mariana Carvalho de Barros, Luisa Peixe, Gianfranco Donelli
OBJECTIVE: Biofilm formation has been associated with the persistence of Acinetobacter baumannii in hospital settings and its propensity to cause infection. We investigated the adhesion ability and clonality of 128 A. baumannii isolates recovered from urine and urinary catheters of patients admitted to 5 European hospitals during 1991-2013. METHODS: Isolates identification was confirmed by rpoB sequencing and by the presence of blaOXA-51. The presence of carbapenemases was detected by PCR...
June 22, 2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28639165/molecular-characterization-of-intestinal-carriage-of-carbapenem-resistant-enterobacteriaceae-among-inpatients-at-two-iranian-university-hospitals-first-report-of-co-production-of-bla-ndm-7-and-bla-oxa-48
#9
H Solgi, F Badmasti, Z Aminzadeh, C G Giske, M Pourahmad, F Vaziri, S A Havaei, F Shahcheraghi
Gastrointestinal colonization of carbapenem-resistant Enterobacteriaceae (CRE) could serve as a reservoir for the transmission of these pathogens in the clinical setting. The aim of this study was to investigate the intestinal carriage of CRE and to analyze risk factors for CRE carriage. Rectal swabs were collected from 95 patients at two Iranian university hospitals. CRE screening was performed using selective media (CHROMagar and MacConkey agar). Polymerase chain reaction (PCR) was used to detect carbapenemase-encoding genes...
June 21, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28637265/importance-of-carbapenemase-production-detection-in-carbapenem-resistant-enterobacteriaceae-looking-beyond-epidemiological-purposes
#10
Adriana Jimenez, Lilian Abbo, Merhawi T Gebrezgi
No abstract text is available yet for this article.
June 16, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28636975/prevalence-of-extended-spectrum-%C3%AE-lactamase-producing-enterobacteriaceae-and-methicillin-resistant-staphylococcus-aureus-in-pig-farms-in-switzerland
#11
Julia G Kraemer, João Pires, Marianne Kueffer, Eulalia Semaani, Andrea Endimiani, Markus Hilty, Anne Oppliger
The presence of Methicillin-Resistant Staphylococcus aureus (MRSA) in pig farms has been widely reported, and the emergence of extended-spectrum β-lactamase-producing Enterobacteriaceae (ESBL-E) has been documented in several countries. However, data for Switzerland are very scarce. This study aimed to compare changes in the prevalence of MRSA in Swiss pig farms between 2008 and 2015 and make the first ever estimates of the presence of ESBL-E and carbapenemase producers in pigs and pig farm workers. Results showed that ESBL-E was present in both pigs and farm workers and that the proportion of farms with MRSA had increased fourfold in seven years (from 7% to 31%)...
June 18, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28636666/molecular-and-microbiological-report-of-a-hospital-outbreak-of-ndm-1-carrying-enterobacteriaceae-in-mexico
#12
Paola Bocanegra-Ibarias, Elvira Garza-González, Rayo Morfín-Otero, Humberto Barrios, Licet Villarreal-Treviño, Eduardo Rodríguez-Noriega, Ulises Garza-Ramos, Santiago Petersen-Morfin, Jesus Silva-Sanchez
OBJECTIVES: To characterize the microbiological, molecular and epidemiological data of an outbreak of carbapenem-resistant Enterobacteriaceae (CRE) in a tertiary-care hospital in Mexico. METHODS: From September 2014 to July 2015, all CRE clinical isolates recovered during an outbreak in the Hospital Civil "Fray Antonio Alcalde" in Jalisco, Mexico were screened for antimicrobial susceptibility, carbapenemase production, carbapenemase-encoding genes, and plasmid profiles...
2017: PloS One
https://www.readbyqxmd.com/read/28631499/the-microbial-contamination-and-the-presence-of-%C3%AE-lactamase-producing-gram-negative-bacteria-in-the-water-and-on-the-surfaces-of-public-recreation-water-facilities
#13
Karmen Godič Torkar, Mirjana Dražetić
The microbiological quality of bathing water and the surfaces of the surrounding pool platforms of two pools was estimated. ESBL- and MBL-producing Gram-negative bacteria isolated from water and surface samples were also studied. The water samples were satisfactory in 31 (86.1 %) out of 36 cases. Pseudomonas aeruginosa as well as Escherichia coli were identified in only 2 (5.5 %) cases. There were no correlations between the HPC and number of enterobacteria in the pool water and those found in the surface samples...
June 20, 2017: International Journal of Environmental Health Research
https://www.readbyqxmd.com/read/28630686/fecal-carriage-of-extended-spectrum-%C3%AE-lactamase-and-carbapenemase-producing-enterobacteriaceae-in-egyptian-patients-with-community-onset-gastrointestinal-complaints-a-hospital-based-cross-sectional-study
#14
H M Abdallah, N Alnaiemi, E A Reuland, B B Wintermans, A Koek, A M Abdelwahab, A Samy, K W Abdelsalam, C M J E Vandenbroucke-Grauls
OBJECTIVES: The aim of this study was to determine the prevalence of extended-spectrum β-lactamase (ESBL) and carbapenemase production among Enterobacteriaceae isolated from ambulatory patients with gastrointestinal complaints admitted to El-Ahrar General Hospital, Zagazig, Egypt in the period between January 2013 and May 2013. METHODS: One hundred and thirteen Enterobacteriaceae isolates were recovered from 100 consecutive Egyptian patients with community-onset gastrointestinal complaints...
2017: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/28630202/identifying-spectra-of-activity-and-therapeutic-niches-for-ceftazidime-avibactam-and-imipenem-relebactam-against-carbapenem-resistant-enterobacteriaceae
#15
Ghady Haidar, Cornelius J Clancy, Liang Chen, Palash Samanta, Ryan K Shields, Barry N Kreiswirth, M Hong Nguyen
We determined imipenem, imipenem-relebactam, ceftazidime and ceftazidime-avibactam minimum inhibitory concentrations (MICs) against 100 CRE isolates that underwent whole genome sequencing. KPCs were the most common carbapenemases. Forty-six isolates carried ESBLs. With the addition of relebactam, imipenem susceptibility increased from 8% to 88%. With the addition of avibactam, ceftazidime susceptibility increased from 0% to 85%. Neither imipenem-relebactam nor ceftazidime-avibactam was active against MBL-producers...
June 19, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28630178/efficacy-of-cefiderocol-against-carbapenem-resistant-gram-negative-bacilli-in-immunocompetent-rat-respiratory-tract-infection-models-recreating-human-plasma-pharmacokinetics
#16
Shuhei Matsumoto, Christine M Singley, Jennifer Hoover, Rio Nakamura, Roger Echols, Stephen Rittenhouse, Masakatsu Tsuji, Yoshinori Yamano
Cefiderocol (S-649266), a novel siderophore cephalosporin, shows potent activity against carbapenem-resistant Gram-negative bacilli. In this study, we evaluated the efficacy of cefiderocol against carbapenem-resistant Gram-negative bacilli (Pseudomonas aeruginosa,Acinetobacter baumannii and Klebsiella pneumoniae) in immunocompetent rat respiratory tract infection models recreating plasma pharmacokinetics (PK) profiles in healthy human subjects. A total of 6 clinical isolates (1 cephalosporin-susceptible P. aeruginosa, 1 multidrug-resistant P...
June 19, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28627648/characterization-of-a-blandm%C3%A2-1%C3%A2-harboring-plasmid-from-a-salmonella%C3%A2-enterica-clinical-isolate-in-china
#17
Jinwei Huang, Shanshan Deng, Jianmin Ren, Jianfei Tu, Meiping Ye, Minggui Wang
The plasmid-mediated transmission of antibiotic resistance genes has been reported to be involved in the development of antibiotic resistance in bacteria, and poses a serious threat for the success of bacterial infection treatment and human health worldwide. The present study used a 454 GS‑FLX pyrosequencing system to determine the ~140 kb nucleotide sequence of plasmid pHS36‑NDM, which was identified in a Salmonella Stanley isolate from the stool sample of an 11‑month‑old girl at Lishui Central Hospital, China, and which contains a New Delhi metallo‑β‑lactamase‑1 (NDM‑1) carbapenem resistance gene (blaNDM‑1)...
June 8, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28626539/resistance-to-colistin-in-klebsiella-pneumoniae-a-4-0-strain
#18
REVIEW
Guido Granata, Nicola Petrosillo
The global rise of multidrug-resistant gram-negative bacteria represents an increasing threat to patient safety. From the first observation of a carbapenem-resistant gram-negative bacteria a global spread of extended-spectrum beta-lactamases and carbapenemases producing Klebsiella pneumoniae has been observed. Treatment options for multidrug-resistant K. pneumoniae are actually limited to combination therapy with some aminoglycosides, tigecycline and to older antimicrobial agents. Unfortunately, the prevalence of colistin-resistant and tigecycline-resistant K...
May 31, 2017: Infectious Disease Reports
https://www.readbyqxmd.com/read/28614760/abundance-of-carbapenemase-genes-blakpc-blandm-and-blaoxa-48-in-wastewater-effluents-from-tunisian-hospitals
#19
Emna Nasri, Jessica Subirats, Alexandre Sànchez-Melsió, Hedi Ben Mansour, Carles M Borrego, José Luis Balcázar
Carbapenems are β-lactam antibiotics with a broad spectrum of activity and are usually considered the last resort for the treatment of severe infections caused by multidrug-resistant pathogens. The clinically most significant carbapenemases are KPC, NDM, and OXA-48-like enzymes, whose genes have been increasingly reported worldwide in members of the family Enterobacteriaceae. In this study, we quantified the abundance of these genes in wastewater effluents from different Tunisian hospitals. The blaNDM and blaOXA-48-like genes were detected at similar concentrations in all hospital wastewater effluents...
June 11, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28610832/comparison-of-antimicrobial-activity-between-ceftolozane-tazobactam-and-ceftazidime-avibactam-against-multidrug-resistant-isolates-of-escherichia-coli-klebsiella-pneumoniae-and-pseudomonas-aeruginosa
#20
Adnan Alatoom, Hashim Elsayed, Karen Lawlor, Laila AbdelWareth, Rania El-Lababidi, Lysettee Cardona, Mohammad Mooty, Maria-Fernanda Bonilla, Ahmad Nusair, Imran Mirza
OBJECTIVE: We compared the activity of ceftolozane-tazobactam and ceftazidime-avibactam against 120 strains including extended spectrum β-lactamase (ESBL) producers, carbapenem-resistant Enterobacteriaceae (CRE) and Pseudomonas aeruginosa isolated from patients admitted to Cleveland Clinic Abu Dhabi, United Arab Emirates. METHODS: The in-vitro susceptibility was tested using E-strip MIC method and PCR was used to characterize the carbapenemase enzymes produced by CRE strains...
June 10, 2017: International Journal of Infectious Diseases: IJID
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