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https://www.readbyqxmd.com/read/29165596/molecular-relatedness-of-esbl-ampc-producing-escherichia-coli-from-humans-animals-food-and-the-environment-a-pooled-analysis
#1
Alejandro Dorado-García, Joost H Smid, Wilfrid van Pelt, Marc J M Bonten, Ad C Fluit, Gerrita van den Bunt, Jaap A Wagenaar, Joost Hordijk, Cindy M Dierikx, Kees T Veldman, Aline de Koeijer, Wietske Dohmen, Heike Schmitt, Apostolos Liakopoulos, Ewa Pacholewicz, Theo J G M Lam, Annet G Velthuis, Annet Heuvelink, Maaike A Gonggrijp, Engeline van Duijkeren, Angela H A M van Hoek, Ana Maria de Roda Husman, Hetty Blaak, Arie H Havelaar, Dik J Mevius, Dick J J Heederik
Background: In recent years, ESBL/AmpC-producing Escherichia coli (ESBL/AmpC-EC) have been isolated with increasing frequency from animals, food, environmental sources and humans. With incomplete and scattered evidence, the contribution to the human carriage burden from these reservoirs remains unclear. Objectives: To quantify molecular similarities between different reservoirs as a first step towards risk attribution. Methods: Pooled data on ESBL/AmpC-EC isolates were recovered from 35 studies in the Netherlands comprising >27 000 samples, mostly obtained between 2005 and 2015...
November 18, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/29164118/infections-caused-by-antimicrobial-drug-resistant-saprophytic-gram-negative-bacteria-in-the-environment
#2
Eva Raphael, Lee W Riley
Background: Drug-resistance genes found in human bacterial pathogens are increasingly recognized in saprophytic Gram-negative bacteria (GNB) from environmental sources. The clinical implication of such environmental GNBs is unknown. Objectives: We conducted a systematic review to determine how often such saprophytic GNBs cause human infections. Methods: We queried PubMed for articles published in English, Spanish, and French between January 2006 and July 2014 for 20 common environmental saprophytic GNB species, using search terms "infections," "human infections," "hospital infection...
2017: Frontiers in Medicine
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/29160392/prevalence-and-sensitivity-of-bacilli-and-pseudomonas-in-the-newborn-s-oral-cavity
#4
Priscila Vitor Alves Ferreira, Isabela Amêndola, Luciane Dias de Oliveira, Célia Regina Gonçalves E Silva, Mariella Vieira Pereira Leão, Silvana Soléo Ferreira Dos Santos
The aim of this study was to isolate Enterobacteria and Pseudomonas from the oral cavity of hospitalized newborns (NB) and determine their prevalence and the sensitivity profile to most commonly used antibiotics for this age group. Samples from the oral cavity of NB from 24 to 48 h age were collected using swabs. The samples were inoculated on MacConkey agar, incubated and the colonies counted and identified. For each strain, the minimum inhibitory concentration (MIC) was determined using agar dilution test...
July 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/29155322/digestive-tract-colonization-by-multidrug-resistant-enterobacteriaceae-in-travellers-an-update
#5
REVIEW
Etienne Ruppé, Antoine Andremont, Laurence Armand-Lefèvre
BACKGROUND: Enterobacteriaceae have become increasingly resistant, especially due to the acquisition and spread of extended-spectrum beta-lactamases (ESBLs), which confer resistance to the majority of beta-lactams. Multi-resistant Enterobacteriaceae (MRE) were first isolated in hospitals, but now they are disseminating in the community setting, mostly in low and middle income countries. Consequently, the increasing number of international travels leads to the importation of MRE from high-prevalence to low-prevalence countries...
November 16, 2017: Travel Medicine and Infectious Disease
https://www.readbyqxmd.com/read/29153063/-investigation-of-various-virulence-factors-of-klebsiella-pneumoniae-strains-isolated-from-nosocomial-infections
#6
Halit Kuş, Uğur Arslan, Hatice Türk Dağı, Duygu Fındık
Klebsiella pneumoniae is an opportunistic pathogen that commonly affects immunosuppressed patients and causes nosocomial infections. K.pneumoniae has a variety of virulence factors, especially capsule polysaccharide, hypermucoviscosity (HV), fimbriae, toxins and determinants for iron acquisition. The aim of this study was to detect the virulence factors in K.pneumoniae strains isolated from nosocomial infections in two years. Fifty three K.pneumoniae strains isolated from the samples of patients with nosocomial infections in the Medical Microbiology Laboratory of Selcuk University Faculty of Medicine Hospital between 2011 and 2013 were included in the study...
October 2017: Mikrobiyoloji Bülteni
https://www.readbyqxmd.com/read/29151997/genetic-investigation-of-beta-lactam-associated-antibiotic-resistance-among-escherichia-coli-strains-isolated-from-water-sources
#7
Reza Ranjbar, Mehrdad Sami
Background: Antimicrobial resistance is an important factor threatening human health. It is widely accepted that antibiotic resistant bacteria such as Escherichia coli (E. coli) released from humans and animals into the water sources, can introduce their resistance genes into the natural bacterial community. Objective: The aim of this study was to investigate the prevalence of blaTEM, blaCTX, blaSHV, blaOXA and blaVEB associated-antibiotic resistance among E. coli bacteria isolated from different water resources in Iran...
2017: Open Microbiology Journal
https://www.readbyqxmd.com/read/29151996/co-occurrence-of-plasmid-mediated-ampc-%C3%AE-lactamase-activity-among-klebsiella-pneumoniae-and-escherichia-coli
#8
Abdulaziz Zorgani, Hiyam Daw, Najib Sufya, Abdullah Bashein, Omar Elahmer, Chedly Chouchani
Introduction: Extended-spectrum β-lactamases (ESBLs), including the AmpC type, are important mechanisms of resistance among Klebsiella pneumoniae and Escherichia coli isolates. Objective: The aim of the study was to investigate the occurrence of AmpC-type β-lactamase producers isolated from two hospitals in Tripoli, Libya. Methods: All clinical isolates (76 K. pneumoniae and 75 E. coli) collected over two years (2013-2014) were evaluated for susceptibility to a panel of antimicrobials and were analyzed phenotypically for the ESBL and AmpC phenotype using E-test and ESBL and AmpC screen disc test...
2017: Open Microbiology Journal
https://www.readbyqxmd.com/read/29151781/molecular-epidemiology-of-extended-spectrum-%C3%AE-lactamase-producing-escherichia-coli-pathotypes-in-diarrheal-children-from-low-socioeconomic-status-communities-in-bihar-india-emergence-of-the-ctx-m-type
#9
Abhishek Mandal, Abhishek Sengupta, Ajay Kumar, Utpal K Singh, Anil K Jaiswal, Pradeep Das, Sushmita Das
Background: Childhood diarrheal diseases remain highly endemic in India, but the emergence of extended-spectrum β-lactamase (ESBL)-producing Escherichia coli among children with diarrhea in Bihar remains elusive. In this study, we determine and characterize ESBL-producing E coli pathotypes among hospitalized diarrheal preschool children living in low socioeconomic level communities in Bihar, India. Materials and methods: The stool samples were collected everyday throughout the year for 2 consecutive years...
2017: Infectious Diseases
https://www.readbyqxmd.com/read/29149965/comparision-of-ureteral-stent-colonization-between-deceased-and-live-donor-renal-transplant-recipients
#10
M Sarier, D Seyman, S Tekin, I Duman, B Uygun, M Demir, E Kukul, A H Yavuz
BACKGROUND: The use of a ureteral stent can cause a urinary tract infection (UTI), although it reduces urologic complications. UTIs are associated with a higher rate of ureteral stent colonization (USC). The aim of this study was to compare USC in living and deceased donor renal transplant recipients. MATERIAL AND METHODS: We conducted a prospective study of 48 patients who underwent renal transplantation between January and December 2016. The stents were removed aseptically, the inner surface of proximal and distal ends of stents were irrigated with liquid culture medium, and then they were vortexed for bacteriological investigation...
November 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/29149242/long-term-carriage-of-extended-spectrum-%C3%AE-lactamase-producing-escherichia-coli-and-klebsiella-pneumoniae-in-the-general-population-in-the-netherlands
#11
Engeline van Duijkeren, Cornelia C H Wielders, Cindy M Dierikx, Angela H A M van Hoek, Paul Hengeveld, Christiaan Veenman, Alice Florijn, Aniek Lotterman, Lidwien A M Smit, Jaap T van Dissel, Catharina B M Maassen, Sabine C de Greeff
Background: This longitudinal study aimed to investigate (risk factors for) persistence of carriage and molecular characteristics of extended-spectrum and pAmpC β-lactamase-producing (ESBL/pAmpC) Escherichia coli and Klebsiella pneumoniae (ESBL-E/K) in adults in the Dutch community. Methods: Following a cross-sectional study (ESBL-E/K prevalence 4.5%), a subset of ESBL-E/K positive (n=76) and negative (n=249) individuals volunteered to provide five monthly faecal samples and questionnaires...
November 15, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29149094/genomic-analysis-of-third-generation-cephalosporin-resistant-escherichia-coli-from-dairy-cow-manure
#12
Muhammad Attiq Rehman, Xianhua Yin, Dion Lepp, Chad Laing, Kim Ziebell, Guylaine Talbot, Edward Topp, Moussa Sory Diarra
The production of extended-spectrum β-lactamases (ESBLs) conferring resistance to new derivatives of β-lactams is a major public health threat if present in pathogenic Gram-negative bacteria. The objective of this study was to characterize ceftiofur (TIO)- or cefotaxime (FOX)-resistant Escherichia coli isolated from dairy cow manure. Twenty-four manure samples were collected from four farms and incubated under anaerobic conditions for 20 weeks at 4 °C or at 25 °C. A total of 37 TIO- or FOX-resistant E. coli were isolated from two of the four farms to determine their susceptibility to 14 antibiotics...
November 17, 2017: Veterinary Sciences
https://www.readbyqxmd.com/read/29148521/author-s-correction-molecular-epidemiology-and-antimicrobial-susceptibility-of-ampc-and-or-extended-spectrum-esbl-%C3%A3-lactamaseproducing-proteus-spp-clinical-isolates-in-zenica-doboj-canton-bosnia-and-herzegovina
#13
Selma Uzunović, Amir Ibrahimagić, Branka Bedenić
Volume 13, no. 2, p. 103-112, 2016. Page 103: The byline should appear as shown above.
August 2017: Medicinski Glasnik
https://www.readbyqxmd.com/read/29139076/extended%C3%A2-spectrum%C3%A2-beta-lactamase-esbl-producing-bacteria-isolated-from-hospital-wastewaters-rivers-and-aquaculture-sources-in-nigeria
#14
Olawale Olufemi Adelowo, Serena Caucci, Omowunmi Abosede Banjo, Ozioma Chinyere Nnanna, Eunice Olubunmi Awotipe, Florence Bosede Peters, Obasola Ezekiel Fagade, Thomas U Berendonk
Untreated wastewater is a risk factor for the spread of antibiotic resistance in the environment. However, little is known about the contribution of untreated wastewater to the burden of antibiotic resistance in the Nigerian environment. In this study, a total of 143 ceftazidime-/cefpodoxime-resistant bacteria isolated from untreated wastewater and untreated wastewater-contaminated surface and groundwater in Nigeria were screened for extended-spectrum β-lactamase (ESBL) genes, integrons and integron gene cassettes by PCR...
November 14, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29138665/-epidemiological-profile-of-uropathogenic-enterobacteria-producing-extended-spectrum-beta-lactamases
#15
Mohammed Sbiti, Khalid Lahmadi, Lhoussaine Louzi
Urinary tract infections due to enterobacteria producing extended spectrum beta-lactamases (ESBL-E) constitute a infectious risk, a major therapeutic challenge and can even lead, in some cases, to a deadlock beacuse of their multi-resistance to antibiotics. This study aimed to determine the epidemiological profile of uropathogenic ESBL-E and to describe their current level of resistance to antibiotics for a better patient management according to local data. We conducted a retrospective study of all ESBL-E strains isolated from all cytobacteriogical testing of urine (CBEU) treated in the Microbiology Laboratory at the Military Hospital of Moulay Ismail, Meknes over a period of three years (from 1 January 2013 to 31 December 2015)...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/29138582/once-daily-intramuscular-amikacin-for-outpatient-treatment-of-lower-urinary-tract-infections-caused-by-extended-spectrum-%C3%AE-lactamase-producing-escherichia-coli-in-children
#16
Meltem Polat, Soner Sertan Kara
Background: The rise in community-acquired urinary tract infections (UTIs) with extended-spectrum β-lactamase (ESBL)-producing Escherichia coli strains raises the question of how to treat these infections effectively in pediatric outpatients. Amikacin has shown promising in vitro activity against ESBL-producing urinary isolates of E. coli; however, clinical data are limited. Objective: To investigate the clinical and microbiological outcomes of community-acquired lower UTIs caused by ESBL-producing E...
2017: Infection and Drug Resistance
https://www.readbyqxmd.com/read/29138446/antimicrobial-resistance-and-genetic-diversity-in-ceftazidime-non-susceptible-bacterial-pathogens-from-ready-to-eat-street-foods-in-three-taiwanese-cities
#17
Lin Lin, Sheng-Fan Wang, Tsung-Ying Yang, Wei-Chun Hung, Min-Yu Chan, Sung-Pin Tseng
Bacterial contamination of ready-to-eat (RTE) street foods is a major concern worldwide. Dissemination of antibiotic resistant pathogens from food is an emerging public-health threat. To investigate the prevalence of antibiotic resistance genes and ceftazidime resistance-associated efflux pumps in foodborne pathogens, 270 RTE street foods samples were collected in three densely populated Taiwanese cities. Among 70 ceftazidime non-susceptible isolates, 21 Stenotrophomonas maltophilia, 12 Pseudomonas spp., 22 Acinetobacter spp...
November 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29138113/prevalence-of-extended-spectrum-beta-lactamase-and-carbapenemase-encoding-genes-in-poultry-feces-from-algeria-and-marseille-france
#18
Chabou Selma, Leulmi Hamza, Davoust Bernard, Aouadi Atef, Jean-Marc Rolain
OBJECTIVE: The aim of this study was to evaluate the prevalence of extended-spectrum beta lactamase (ESBLs) and carbapenemase-encoding genes in poultry from Algeria and Marseille, France. MATERIALS AND METHODS: The samples consisted of feces from broilers from France and Algeria between 2014 and 2015. DNA extraction and quantitative PCR were performed on 833 fecal samples to screen for the presence of ESBLs (TEM, SHV, CTX-M) and carbapenemase-encoding genes (NDM, OXA48, OXA58)...
November 11, 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/29137487/emergence-of-fosfomycin-resistance-among-isolates-of-escherichia-coli-harboring-extended-spectrum-and-ampc-%C3%AE-lactamases
#19
Aghil Bahramian, Gita Eslami, Ali Hashemi, Ali Tabibi, Mohsen Heidary
Urinary tract infection (UTI) is a common type of infectious disease globally. The aim of this study was to detect the frequency of fosA3 and fosC2 genes in extended-spectrum β-lactamases (ESBL) and blaDHA, blaCMY-2, and blaCMY-42 genes in AmpC β-lactamases-producing isolates of Escherichia coli. In total, 120 isolates of E. coli were collected from three teaching hospitals between March 2014 and February 2015. Antibiotic susceptibility tests were carried out by disk diffusion method. The presence of blaCMY-2, blaCMY-42, blaDHA, fosA3, and fosC2 genes was detected by polymerase chain reaction (PCR) and sequencing...
November 15, 2017: Acta Microbiologica et Immunologica Hungarica
https://www.readbyqxmd.com/read/29136410/salmonella-enterica-serovar-typhi-producing-ctx-m-15-extended-spectrum-%C3%AE-lactamase-in-the-democratic-republic-of-the-congo
#20
Marie-France Phoba, Barbara Barbé, Octavie Lunguya, Lysette Masendu, Deo Lulengwa, Gordon Dougan, Vanessa K Wong, Sophie Bertrand, Pieter-Jan Ceyssens, Jan Jacobs, Sandra Van Puyvelde, Stijn Deborggraeve
We report a typhoid fever case with a Salmonella enterica serovar Typhi isolate showing extended spectrum β-lactamase (ESBL) production in the Democratic Republic of the Congo. Whole genome sequencing revealed that the strain carried a plasmid-mediated CTX-M-15 ESBL gene and did not belong to the dominant H58 Salmonella Typhi clade.
October 1, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
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