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https://www.readbyqxmd.com/read/28612707/genetic-characteristic-of-class-1-integrons-in-proteus-mirabilis-isolates-from-urine-samples
#1
Chih-Ming Chen, Chih-Ho Lai, Hwa-Jene Wu, Lii-Tzu Wu
BACKGROUND: Proteus mirabilis is an opportunistic pathogen, commonly associated with complicated urinary tract infections (UTIs). UTIs caused by multidrug-resistant Proteus mirabilis have increased worldwide. Multidrug-resistance of Gram-negative enteric bacteria is usually associated with class 1 integrons. PURPOSES: To investigate the prevalence and characterize gene cassettes of class 1 integrons in multidrug-resistant P. mirabilis Methods: From 2006 to 2008, 314 P...
June 2017: BioMedicine
https://www.readbyqxmd.com/read/28608133/frequency-associated-factors-and-outcome-of-multi-drug-resistant-intensive-care-unit-acquired-pneumonia-among-patients-colonized-with-extended-spectrum-%C3%AE-lactamase-producing-enterobacteriaceae
#2
Keyvan Razazi, Armand Mekontso Dessap, Guillaume Carteaux, Chloé Jansen, Jean-Winoc Decousser, Nicolas de Prost, Christian Brun-Buisson
BACKGROUND: We assessed prevalence, associated factors and prognosis of extended-spectrum beta-lactamase-producing Enterobacteriaceae pneumonia acquired in intensive care unit (ESBL-PE pneumonia) among carriers. Variables associated with nosocomial pneumonia caused by carbapenem-resistant bacteria (CRB) were also assessed. METHODS: A 6-year prospective study (May 2009-March 2015) in the medical ICU of an 850-bed university-affiliated hospital was conducted. RESULTS: Of the 6303 patients admitted, 843 (13...
December 2017: Annals of Intensive Care
https://www.readbyqxmd.com/read/28600076/the-contribution-and-limits-of-clinical-specimens-for-the-screening-of-intestinal-multidrug-resistant-bacteria-in-view-of-laboratory-automation
#3
Geraud De Galassus Alix, Florence Cizeau, Aurélie Agathine, Cecilia Domrane, David Ducellier, Vincent Fihman, Jean-Winoc Decousser
The detection of multidrug-resistant bacteria carriers constitutes a race against time for infection preventionists. Alongside standard analysis for diagnosis purposes and rectal screening strategy, we tested a heavy-loaded selective method against 562 clinical specimens from 439 patients to detect extended-spectrum beta-lactamase-producing (ESBL) or carbapenemase-producing Enterobacteriaceae (CPE) and vancomycin-resistant enterococci (VRE). Our approach identified five more specimens positive for ESBL-producing Enterobacteriaceae than standard analysis, and 6 out of 9 known VRE/CPE carriers (three new CPE/VRE strains were also identified in this cohort)...
June 6, 2017: Journal of Hospital Infection
https://www.readbyqxmd.com/read/28474180/importance-of-pre-enrichment-for-detection-of-third-generation-cephalosporin-resistant-enterobacteriaceae-3gcreb-from-rectal-swabs
#4
N Jazmati, T Jazmati, A Hamprecht
Screening for multidrug-resistant Enterobacteriaceae is performed in many institutions as part of infection control measures. However, the sensitivity of current standard diagnostics is modest. Furthermore, patients are usually screened by rectal swabs (mostly rayon based), which have been shown to be sub-optimal for the recovery of Enterobacteriaceae. Therefore, it is likely that many patients colonised with multidrug-resistant Enterobacteriaceae remain undetected. The present study aimed to analyse if the detection of multidrug-resistant Enterobacteriaceae can be improved when screening with rayon swabs is done in combination with an additional pre-enrichment step...
May 5, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28441421/high-prevalence-of-mrsa-and-esbl-among-asylum-seekers-in-the-netherlands
#5
Sofanne J Ravensbergen, Matthijs Berends, Ymkje Stienstra, Alewijn Ott
Migration is one of the risk factors for the spread of multidrug-resistant organisms (MDRO). The increasing influx of migrants challenges local health care systems. To provide evidence for both hospital hygiene measure and empirical antibiotic therapy, we analysed all cultures performed in asylum seekers between January 1st 2014 and December 31st 2015 for methicillin resistant Staphylococcus aureus (MRSA) and for multidrug-resistant Enterobacteriaceae (MDRE). We compared these with cultures from the Dutch patient population with risk factors for carriage of MDRO...
2017: PloS One
https://www.readbyqxmd.com/read/28379311/contact-precautions-for-preventing-nosocomial-transmission-of-esbl-producing-escherichia-coli-a-point-counterpoint-review
#6
Sarah Tschudin-Sutter, Jean-Christophe Lucet, Nico T Mutters, Evelina Tacconelli, Jean Ralph Zahar, Stephan Harbarth
Contact precautions have been recommended for hospitalized patients colonized or infected with extendend-spectrum beta-lactamase (ESBL)-producing Escherichia coli. Despite such recommendations, a steady, worldwide increase of ESBL-E. coli has been reported. We discuss arguments in favor and against contact precautions for ESBL- E.coli-carriers.Healthcare settings with high ESBL-E.coli colonization pressure, extended hospital stay and close contact between vulnerable patients may serve as amplification platform further accelerating transmission...
April 3, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28281197/wild-birds-and-urban-pigeons-as-reservoirs-for-diarrheagenic-escherichia-coli-with-zoonotic-potential
#7
Clarissa A Borges, Marita V Cardozo, Livia G Beraldo, Elisabete S Oliveira, Renato P Maluta, Kaline B Barboza, Karin Werther, Fernando A Ávila
In order to describe the role of wild birds and pigeons in the transmission of shiga toxigenic Escherichia coli (STEC) and enteropathogenic Escherichia coli (EPEC) to humans and other animals, samples were collected from cloacae and oropharynx of free-living wild birds and free-living pigeons. Two STEC (0.8%) and five EPEC strains (2.0%) were isolated from wild birds and four EPEC strains (2.0%) were recovered from pigeons. Serogroups, sequence types (STs) and virulence genes, such as saa, iha, lpfA O113, ehxA, espA, nleB and nleE, detected in this study had already been implicated in human and animal diseases...
March 9, 2017: Journal of Microbiology / the Microbiological Society of Korea
https://www.readbyqxmd.com/read/28262042/genomic-attributes-of-extended-spectrum-%C3%AE-lactamase-producing-escherichia-coli-isolated-from-patients-in-lebanon
#8
Sima Tokajian, Tamara Salloum, Jonathan A Eisen, Guillaume Jospin, Anna Farra, Jacques E Mokhbat, David A Coil
AIM: Extended-spectrum β-lactamase-producing (ESBL) Escherichia coli are a public threat worldwide. This study aimed at analyzing the genomic and functional attributes of nine ESBLs taken from rectal swabs. MATERIALS & METHODS: Samples were isolated from patients admitted for gastrointestinal and urological procedures at the University Medical Center-Rizk Hospital (UMCRH) in Lebanon. Illumina paired-end libraries were prepared and sequenced. RESULTS: The isolates were distributed into five lineages: ST131, ST648, ST405, ST73 and ST38, and harbored bla OXA-1, bla TEM-1B, bla TEM-1C and aac(6')Ib-cr...
March 2017: Future Microbiology
https://www.readbyqxmd.com/read/28196696/patients-hospitalized-abroad-as-importers-of-multiresistant-bacteria-a-cross-sectional-study
#9
T Khawaja, J Kirveskari, S Johansson, J Väisänen, A Djupsjöbacka, A Nevalainen, A Kantele
OBJECTIVES: The pandemic spread of multidrug-resistant (MDR) bacteria poses a threat to healthcare worldwide, with highest prevalence in indigent regions of the (sub)tropics. As hospitalization constitutes a major risk factor for colonization, infection control management in low-prevalence countries urgently needs background data on patients hospitalized abroad. METHODS: We collected data on 1122 patients who, after hospitalization abroad, were treated at the Helsinki University Hospital between 2010 and 2013...
February 11, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28154560/detection-of-sgi1-pgi1-elements-and-resistance-to-extended-spectrum-cephalosporins-in-proteae-of-animal-origin-in-france
#10
Eliette Schultz, Axel Cloeckaert, Benoît Doublet, Jean-Yves Madec, Marisa Haenni
Proteae, and especially Proteus mirabilis, are often the cause of urinary tract infections (UTIs) in humans. They were reported as carriers of extended-spectrum β-lactamase (ESBL) genes, and recently of carbapenemases, mostly carried by the Salmonella genomic island 1 (SGI1) and Proteus genomic island 1 (PGI1). Proteae have also lately become an increasing cause of UTIs in companion animals, but antimicrobial susceptibility data in animals are still scarce. Here, we report the characterization of 468 clinical epidemiologically unrelated Proteae strains from animals collected between 2013 and 2015 in France...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28095119/fecal-carriage-of-extended-spectrum-%C3%AE-lactamase-producing-enterobacteriaceae-strains-is-associated-with-worse-outcome-in-patients-hospitalized-in-the-pediatric-oncology-unit-of-beni-messous-hospital-in-algiers-algeria
#11
Chafiaa Medboua-Benbalagh, Abdelaziz Touati, Rachida Kermas, Alima Gharout-Sait, Lucien Brasme, Halima Mezhoud, Djamila Touati, Thomas Guillard, Christophe de Champs
OBJECTIVES: The current study aimed to investigate extended-spectrum β-lactamase-producing Enterobacteriaceae (ESBL-E) fecal carriage in children with different cancers admitted in the pediatric oncology unit of Beni-Messous Hospital (Algiers, Algeria). MATERIALS AND METHODS: Rectal swabs from children with cancer were sampled from February 2012 to May 2013 within 48 hours following their admission. After species identification and detection of ESBL production by double-disk synergy test (DD test), antibiotic susceptibility was determined by the standard disk diffusion method...
January 17, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/28093116/captive-and-free-living-urban-pigeons-columba-livia-from-brazil-as-carriers-of-multidrug-resistant-pathogenic-escherichia-coli
#12
Clarissa A Borges, Renato P Maluta, Lívia G Beraldo, Marita V Cardozo, Elisabete A L Guastalli, Subhashinie Kariyawasam, Chitrita DebRoy, Fernando A Ávila
Thirty Escherichia coli isolates from captive and free-living pigeons in Brazil were characterised. Virulence-associated genes identified in pigeons included those which occur relatively frequently in avian pathogenic E. coli (APEC) from commercial poultry worldwide. Eleven of 30 E. coli isolates from pigeons, belonging mainly to B1 and B2 phylogenetic groups, had high or intermediate pathogenicity for 1-day-old chicks. The frequency of multi-drug resistant (MDR) E. coli in captive pigeons was relatively high and included one isolate positive for the extended-spectrum β-lactamase (ESBL) gene blaCTX-M-8...
January 2017: Veterinary Journal
https://www.readbyqxmd.com/read/28049493/presence-of-foodborne-pathogens-extended-spectrum-%C3%AE-lactamase-producing-enterobacteriaceae-and-methicillin-resistant-staphylococcus-aureus-in-slaughtered-reindeer-in-northern-finland-and-norway
#13
Sauli Laaksonen, Antti Oksanen, Jérôme Julmi, Claudio Zweifel, Maria Fredriksson-Ahomaa, Roger Stephan
BACKGROUND: Various food-producing animals were recognized in recent years as healthy carriers of bacterial pathogens causing human illness. In northern Fennoscandia, the husbandry of semi-domesticated reindeer (Rangifer tarandus tarandus) is a traditional livelihood and meat is the main product. This study determined the presence of selected foodborne pathogens, methicillin-resistant Staphylococcus aureus (MRSA), and extended-spectrum β-lactamase (ESBL)-producing Enterobacteriaceae in healthy semi-domesticated reindeer at slaughter in northern Finland and Norway...
January 3, 2017: Acta Veterinaria Scandinavica
https://www.readbyqxmd.com/read/27965302/proton-pump-inhibitor-use-is-associated-with-extended-spectrum-%C3%AE-lactamase-producing-enterobacteriaceae-rectal-carriage-at-hospital-admission-a-cross-sectional-study
#14
Pepijn Huizinga, Marjolein Kluytmans- van den Bergh, Miranda van Rijen, Ina Willemsen, Nils van 't Veer, Jan Kluytmans
In this cross-sectional study, 8.5% of patients using proton pump inhibitors (PPIs) were rectal carriers of extended-spectrum β-lactamase-producing Enterobacteriaceae (ESBL-E), compared with 2.9% of non-PPI users. In multivariable analysis, PPI use was independently associated with ESBL-E rectal carriage at hospital admission (adjusted odds ratio, 3.89; 95% confidence interval, 1.65 - 9.19).
February 1, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/27942042/faecal-carriage-of-gram-negative-multidrug-resistant-bacteria-among-patients-hospitalized-in-two-centres-in-ulaanbaatar-mongolia
#15
Bayaraa Baljin, Ganbaatar Baldan, Battogtokh Chimeddorj, Khosbayar Tulgaa, Batbaatar Gunchin, Tsogtsaikhan Sandag, Klaus Pfeffer, Colin R MacKenzie, Andreas F Wendel
Gram-negative multidrug-resistant organisms (GN-MDRO) producing β-lactamases (ESBL, plasmid-mediated AmpC β-lactamases and carbapenemases) are increasingly reported throughout Asia. The aim of this surveillance study was to determine the rate of bacterial colonization in patients from two hospitals in the Mongolian capital Ulaanbaatar. Rectal swabs were obtained from patients referred to the National Traumatology and Orthopaedics Research Centre (NTORC) or the Burn Treatment Centre (BTC) between July and September 2014, on admission and again after 14 days...
2016: PloS One
https://www.readbyqxmd.com/read/27902381/detection-of-escherichia-coli-st131-clonal-complex-st705-and-klebsiella-pneumoniae-st15-among-faecal-carriage-of-extended-spectrum-%C3%AE-lactamase-and-carbapenemase-producing-enterobacteriaceae
#16
Esther Ríos, María Carmen López, Iciar Rodríguez-Avial, Esther Culebras, Juan José Picazo
PURPOSE: The objective of the present study was to evaluate the prevalence of intestinal colonization with extended-spectrum β-lactamase (ESBL)-producing Enterobacteriaceae (ESBL-E) and carbapenemase-producing Enterobacteriaceae (CPE) in non-selected hospitalized and non-hospitalized patients from the same geographic area of Madrid. METHODOLOGY: A total of 501 fecal samples were screened. Diluted samples in saline were cultured in MacConkey agar plates with ceftazidime, cefotaxime, imipenem and meropenem disks...
February 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/27889252/peripartum-maternal-transmission-of-extended-spectrum-%C3%AE-lactamase-organism-to-newborn-infants
#17
Avi Peretz, Alina Skuratovsky, Efrat Khabra, Amos Adler, Nina Pastukh, Shay Barak, Yuri Perlitz, Moshe Ben-Ami, Amir Kushnir
The aim of this study was to determine whether the route of extended-spectrum β-lactamase (ESBL) transmission to hospitalized newborns was from their mothers during delivery. Neonatal intensive care unit (NICU) hospitalized newborns were sampled for ESBL presence by stool cultures on the first and fourth days of life. Mothers of ESBL-positive newborns were sampled for possible correlation detection. Bacteria isolates were molecularly identified and susceptibility tests for antibiotic agents were performed...
February 2017: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/27812159/enterobacteriaceae-isolated-from-the-river-danube-antibiotic-resistances-with-a-focus-on-the-presence-of-esbl-and-carbapenemases
#18
Clemens Kittinger, Michaela Lipp, Bettina Folli, Alexander Kirschner, Rita Baumert, Herbert Galler, Andrea J Grisold, Josefa Luxner, Melanie Weissenbacher, Andreas H Farnleitner, Gernot Zarfel
In a clinical setting it seems to be normal these days that a relevant proportion or even the majority of different bacterial species has already one or more acquired antibiotic resistances. Unfortunately, the overuse of antibiotics for livestock breeding and medicine has also altered the wild-type resistance profiles of many bacterial species in different environmental settings. As a matter of fact, getting in contact with resistant bacteria is no longer restricted to hospitals. Beside food and food production, the aquatic environment might also play an important role as reservoir and carrier...
2016: PloS One
https://www.readbyqxmd.com/read/27806830/acquisition-of-extended-spectrum-%C3%AE-lactamases-during-travel-abroad-a-qualitative-study-among-swedish-travellers-examining-their-knowledge-risk-assessment-and-behaviour
#19
Susanne Wiklund, Ingegerd Fagerberg, Åke Örtqvist, Kristina Broliden, Ann Tammelin
BACKGROUND: Travel to foreign countries involves the risk of becoming a carrier of antibiotic-resistant bacteria, especially when the destination is a country with a high prevalence of this type of bacteria. AIM AND METHODS: The aim of this study was to learn about the knowledge of antibiotic resistance, and the behaviour and risk-taking among travellers, who had become carriers of extended spectrum beta-lactamases (ESBL)-producing bacteria during travel to a high-prevalence country...
2016: International Journal of Qualitative Studies on Health and Well-being
https://www.readbyqxmd.com/read/27798205/community-carriage-of-esbl-producing-escherichia-coli-is-associated-with-strains-of-low-pathogenicity-a-swedish-nationwide-study
#20
Sofia Ny, Sonja Löfmark, Stefan Börjesson, Stina Englund, Maj Ringman, Jakob Bergström, Pontus Nauclér, Christian G Giske, Sara Byfors
OBJECTIVES: Community carriage of ESBL-producing Escherichia coli (EPE) is common worldwide and there is a need to understand the connection between carriage and infection. We compared the molecular characteristics of EPE among Swedish community carriers with those of EPE causing invasive infections. METHODS: We collected 2134 faecal samples from randomly selected Swedish inhabitants and examined them for the presence of EPE. All participating volunteers answered a questionnaire about putative risk factors for EPE carriage...
October 24, 2016: Journal of Antimicrobial Chemotherapy
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