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https://www.readbyqxmd.com/read/29099868/evaluation-of-a-multiplex-panel-for-the-diagnosis-of-acute-infectious-diarrhea-in-immunocompromised-hematologic-patients
#1
Izaskun Alejo-Cancho, Francesc Fernández Avilés, Alicia Capón, Cristina Rodríguez, Josep Barrachina, Pilar Salvador, Mª Eugenia Valls, Miriam J Álvarez-Martínez, Yuliya Zboromyrska, Jordi Vila, Mª Ángeles Marcos
INTRODUCTION: Diarrhea is a frequent complication in hematologic patients, being an infectious cause frequently suspected. Rapid and accurate detection of gastrointestinal pathogens is vital in immunocompromised hosts. The aim of this study was to compare routine diagnostic methods versus a multiplex polymerase chain reaction (PCR) assay for the diagnosis of infectious diarrhea in immunocompromised hematologic patients. MATERIAL AND METHODS: We conducted a prospective observational study from March 2015 to January 2016 to compare conventional methods for the diagnosis of infectious diarrhea with FIlmArray GI Panel (BioFire-bioMérieux, France)...
2017: PloS One
https://www.readbyqxmd.com/read/29062487/challenges-in-the-identification-of-chryseobacterium-indologenes-and-elizabethkingia-meningoseptica-in-cases-of-nosocomial-infections-and-patients-with-cystic-fibrosis
#2
É B de Carvalho Filho, F A L Marson, C E Levy
Rare nonfermenting Gram-negative bacilli, such as Chryseobacterium indologenes and Elizabethkingia meningoseptica, have clinical importance in nosocomial infections and cystic fibrosis (CF), and their identification is a challenge to microbiology laboratories. Thus, the objective of this study was to verify the performance of phenotypic and mass spectrometry (matrix-assisted desorption ionization-time of flight mass spectrometry, MALDI-TOF MS) methods to identify C. indologenes and E. meningoseptica. In this context, the results obtained with phenotypic methods-namely manual biochemical and automated VITEK 2 (bioMérieux, Marcy l'Etoile, France) and Phoenix tests (Becton Dickinson (BD), San Diego, CA, USA)-and by MALDI-TOF MS-namely MALDI-TOF VITEK MS (MALDI-MS; bioMérieux) and MALDI-TOF BioTyper (MALDI-BD; BD)-of 22 isolates (blood cultures of patients with nosocomial infection (n = 15) and from patients with CF (n = 7)), initially identified as C...
November 2017: New Microbes and New Infections
https://www.readbyqxmd.com/read/29059646/kocuria-rosea-kocuria-kristinae-leuconostoc-mesenteroides-as-caries-causing-representatives-of-oral-microflora
#3
Maiia M Ananieva, Mariia O Faustova, Iaroslav O Basarab, Galina A Loban'
INTRODUCTION: Recently, opportunistic microflora are increasingly known to be involved in the development of pathological processes in various systems and organs. This situation promotes interest in their detailed study as causative agents of bacterial infections. THE AIM: To study the microbial species residing in carious cavities in acute profound caries. MATERIALS AND METHODS: The study involved 14 people with a diagnosis of acute profound caries...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29055533/short-communication-genomic-and-phenotypic-analyses-of-exopolysaccharides-produced-by-streptococcus-thermophilus-klds-sm
#4
Bailiang Li, Xiuyun Ding, Smith Etareri Evivie, Da Jin, Yueyue Meng, Guicheng Huo, Fei Liu
Streptococcus thermophilus plays important roles in the dairy industry. Streptococcus thermophilus KLDS SM could produce a high amount of exopolysaccharides (EPS). To understand the possible link between the genotype and the phenotype regarding EPS, the complete genome of S. thermophilus KLDS SM was sequenced and investigated in silico for genes related to carbohydrate fermentation, nucleotide sugars synthesis, and EPS gene cluster. We found that S. thermophilus KLDS SM is able to ferment sucrose, mannose, glucose, galactose, and lactose from the genomic research, which was confirmed by API 50 CH (bioMérieux, Marcy l'Etoile, France)...
October 18, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28993064/antimicrobial-susceptibility-of-microorganisms-that-cause-urinary-tract-infections-in-pediatric-patients
#5
Jesús Rodríguez-Lozano, Ana de Malet, María Eliecer Cano, Luis de la Rubia, Reinhard Wallmann, Luis Martínez-Martínez, Jorge Calvo
INTRODUCTION: Cumulative susceptibility reports are a valuable tool for the empirical treatment of urinary tract infections, especially in the current context of increasing resistance rates. Our objective was to analyze the antimicrobial susceptibility of bacterial isolates in urine cultures of pediatric patients during a five-year period. METHODS: Retrospective study of urine cultures from 2011 to 2015. Identification and antimicrobial susceptibility tests were performed using the Vitek-2 system (BioMérieux(®)) and categorized according to EUCAST criteria...
October 6, 2017: Enfermedades Infecciosas y Microbiología Clínica
https://www.readbyqxmd.com/read/28978682/comparison-of-different-phenotypic-approaches-to-screen-and-detect-mecc-harboring-methicillin-resistant-staphylococcus-aureus
#6
André Kriegeskorte, Evgeny A Idelevich, Andreas Schlattmann, Franziska Layer, Birgit Strommenger, Olivier Denis, Gavin K Paterson, Mark A Holmes, Guido Werner, Karsten Becker
Similar to mecA, mecC confers resistance against beta-lactams, leading to the phenotype of a methicillin-resistant Staphylococcus aureus (MRSA). However, mecC-harboring MRSA pose special difficulties in their detection. The aim of this study was to assess and compare different phenotypic systems for screening, identification, and susceptibility testing of mecC-positive MRSA isolates. A well-characterized collection of mecC-positive S. aureus isolates (n = 111) was used for evaluation. Routinely used approaches were studied to determine their suitability to correctly identify mecC-harboring MRSA including three (semi-)automated antimicrobial susceptibility testing (AST) systems and five selective chromogenic agar plates...
October 4, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28978681/high-stringency-evaluation-of-the-automated-bd-phoenix%C3%A2-cpo-detect-and-rapidec%C3%A2-carba-np-tests-for-detection-and-classification-of-carbapenemases
#7
Gina Thomson, David Turner, William Brasso, Susan Kircher, Thierry Guillet, Kenneth Thomson
There is an urgent need for rapid, accurate detection and classification of carbapenemases. The current study evaluated the automated BD Phoenix™ CPO Detect and the manual bioMérieux RAPIDEC® CARBA NP for meeting these needs. Both tests were challenged with 294 Enterobacteriaceae, Pseudomonas aeruginosa and Acinetobacter baumannii chosen to provide extreme diagnostic difficulty. Carbapenemases such as KPC, NMC-A, IMI, SME, NDM, SPM, IMP, VIM, OXA-23, 40, 48, 58, 72, 181, and 232 were produced by 243 isolates and 51 carbapenemase-negative isolates included porin mutants and producers of ESBLs, AmpCs, K1, and broad spectrum β-lactamases...
October 4, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28969155/linezolid-and-vancomycin-resistant-enterococci-a-therapeutic-problem
#8
Garima Yadav, Bhaskar Thakuria, Molly Madan, Vivek Agwan, Anita Pandey
INTRODUCTION: Enterococci are recognized as opportunistic pathogens, as well as commensals in both humans and animals. They are an important cause of nosocomial infections, difficult to treat, as the organism have intrinsic and acquired resistance to many antibiotics. AIM: To isolate and identify clinically relevant Enterococcus up to species level from all the clinical samples processed in the microbiology laboratory and also to study their resistance pattern. MATERIALS AND METHODS: A prospective study was carried out for a period of one year from May 2014 to April 2015 at the Department of Microbiology, Subharti Medical College, Meerut, Uttar Pradesh, India...
August 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28954897/evaluation-of-a-new-ict-test-ldbio-diagnostics-to-detect-toxoplasma-igg-and-igm-comparison-with-the-routine-architect-technique
#9
Caroline Mahinc, Pierre Flori, Edouard Delaunay, Cécile Guillerme, Sana Charaoui, Hélène Raberin, Jamal Hafid, Coralie L'Ollivier
A study comparing the ICT (immunochromatography technology) Toxoplasma® IgG and IgM rapid diagnostic test (LDBIO Diagnostics, France) with the fully automated system, Architect, was performed on samples from university hospitals of Marseille and Saint-Etienne. A total of 767 prospective sera and 235 selected sera were collected. The panels were selected to test various IgG and IgM parameters. The reference technique Toxoplasma IgGII Western Blot (LDBIO Diagnostics) was used to confirm the IgG results and commercial kits Platelia Toxo IgM (Biorad) and Toxo-ISAgA (bioMérieux) were used in Saint-Etienne and Marseille respectively, as the IgM reference technique...
September 27, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28932746/isolation-identification-and-antimicrobial-susceptibility-of-bacteria-associated-with-waterpipe-contaminants-in-selected-area-of-saudi-arabia
#10
Mohammed Alaidarous, Meshal Alanazi, Ahmed Abdel-Hadi
This study highlights the level of microbial contamination of waterpipe components in selected area of Saudi Arabia and the resistance of selected bacteria to different antibiotics was determined. A series of biochemical tests, microscopic examination, and screening on Vitek 2 compact (bioMérieux Inc., USA) system were done to characterize the bacterial isolates. Out of 132 samples investigated, 7 mouthpiece samples and 48 water bowl samples showed positivity on culture. The percentage of contamination rate was higher in water bowl (69...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28929962/-determination-of-in-vitro-susceptibilities-of-brucella-spp-strains-against-11-different-antibacterial-gents-isolated-from-blood-cultures
#11
Recep Keşli, Hüseyin Bilgin, Halim Yılmaz
Brucellosis is a worldwide zoonotic disease and still continuous to be a major public health problem. In this study, it was aimed to identify the Brucella strains to the species level isolated from blood cultures, and to determine the rate of antimicrobial susceptibility against eleven antibacterial agents. A total of 106 Brucella spp. strains were included in the study, which were isolated from blood cultures in University of Health Sciences, Konya Training and Research Hospital, Medical Microbiology Laboratory between January 2011 and June 2013...
July 2017: Mikrobiyoloji Bülteni
https://www.readbyqxmd.com/read/28929958/-screening-of-corynebacterium-diphtheriae-corynebacterium-ulcerans-and-corynebacterium-pseudotuberculosis-in-throat-swab-specimens-of-children-with-upper-respiratory-tract-infections
#12
Zeynep Gökçe Gayretli Aydın, Gönül Tanır, Selin Nar Ötgün, Meral Turan, Türkan Aydın Teke, Ayşe Kaman, Selçuk Kılıç
Although a significant decrease has been reported in the incidence of diphteria in many regions of the world following the routine diphtheria immunization programs, the emergence of new cases indicated that toxigenic strains are still circulating in the community. Diphtheria vaccine does not provide protection against asymptomatic carriage and colonization of non-toxigenic Corynebacterium diphtheriae. It is a known fact that invasive infections may arise from non-toxigenic C.diphtheriae strains that the non-toxigenic strains can become toxigenic strains leading to diphteria...
July 2017: Mikrobiyoloji Bülteni
https://www.readbyqxmd.com/read/28918154/hot-topic-geographical-distribution-and-strain-diversity-of-lactobacillus-wasatchensis-isolated-from-cheese-with-unwanted-gas-formation
#13
Michele Culumber, Donald J McMahon, Fatih Ortakci, Lauren Montierth, Beatriz Villalba, Jeffery R Broadbent, Craig J Oberg
Lactobacillus wasatchensis, an obligate heterofermentative nonstarter lactic acid bacteria (NSLAB) implicated in causing gas defects in aged cheeses, was originally isolated from an aged Cheddar produced in Logan, Utah. To determine the geographical distribution of this organism, we isolated slow-growing NSLAB from cheeses collected in different regions of the United States, Australia, New Zealand, and Ireland. Seven of the cheeses showed significant gas defects and 12 did not. Nonstarter lactic acid bacteria were isolated from these cheeses on de Man, Rogosa, and Sharpe medium supplemented with ribose, a preferred substrate for Lb...
November 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28913414/diversity-of-aerobic-bacteria-isolated-from-oral-and-cloacal-cavities-from-free-living-snakes-species-in-costa-rica-rainforest
#14
Allan Artavia-León, Ariel Romero-Guerrero, Carolina Sancho-Blanco, Norman Rojas, Rodolfo Umaña-Castro
Costa Rica has a significant number of snakebites per year and bacterial infections are often complications in these animal bites. Hereby, this study aims to identify, characterize, and report the diversity of the bacterial community in the oral and cloacal cavities of venomous and nonvenomous snakes found in wildlife in Costa Rica. The snakes where captured by casual encounter search between August and November of 2014 in the Quebrada González sector, in Braulio Carrillo National Park. A total of 120 swabs, oral and cloacal, were taken from 16 individuals of the Viperidae and Colubridae families...
2017: International Scholarly Research Notices
https://www.readbyqxmd.com/read/28910938/-comparison-of-commercial-hiv-1-viral-load-tests-by-using-proficiency-test-results-in-china-2013-2015
#15
L Zhang, C Jin, Z Jiang, T Tang, Y Jiang, P L Pan
Objective: To compare the bio-equivalence among commercial HIV-1 viral load tests, including EasyQ HIV-1 v2.0 (EasyQ) from bioMerieux NucliSens of France; VERSANT HIV-1 RNA 3.0 assay (bDNA) from Siemens Healthcare Diagnostics of USA; COBAS AmpliPrep/COBAS TaqMan HIV-1 test (Taqman) from Roche Molecular Diagnosis of USA; Abbott Real Time HIV-1 Kit (M2000) from Abbott Molecular of USA and two domestic HIV-1 viral load test kits (domestic kit) from DaAn Gene Company of Sun Yat-Sen University and Liaoning Bio-Pharmaceutical company of Northeast pharmaceutical group, by using proficiency test results in China from 2013 to 2015...
September 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28885937/utility-of-the-nanosphere-verigene-in-the-identification-of-bacteremia-isolates-from-the-burn-intensive-care-unit
#16
Aaron Farmer, Charlotte A Lanteri, Eric Steele, Katrin Mende, Jeremy Pamplin, Kevin S Akers
INTRODUCTION: The Nanosphere Verigene Blood Culture Nucleic Acid Tests allow pathogen and antimicrobial resistance marker identification within 2.5 hours of a positive blood culture. This study assessed the sensitivity of the Verigene among Burn Intensive Care Unit (BICU) isolates and acceleration to targeted antibiotic therapy. METHODS: Bacterial identifications from BICU patients with positive blood cultures over 8 months were compared using 2 different platforms, the Verigene Gram-positive and Gram-negative blood culture tests vs...
September 2017: Military Medicine
https://www.readbyqxmd.com/read/28877761/phenotypic-prevalence-of-extended-spectrum-beta-lactamases-among-enterobacteriaceae-isolated-at-mulago-national-referral-hospital-uganda
#17
Lucas Ampaire, Emmanuel Nduhura, Izale Wewedru
OBJECTIVE: Enterobacteriaceae, common causes of health care associated and community acquired infections are mainly treated with beta-lactam agents. Our study objective was to determine the prevalence and common enterobacteriaceae pathogen producing extended spectrum beta lactamases (ESBLs). The isolates were recovered from various clinical specimens. This was cross sectional study conducted between July 2016 and September 2016 at Mulago National Referral Hospital, Uganda. We used ChromID™ ESBL agar (Biomerieux SA, Lyon, France) and Vitek2 compact system GN83 card (BioMerieux Inc, Hazelwood, Missouri, USA) to detect and confirm presence of phenotypic extended spectrum beta lactamases producing pathogens respectively...
September 6, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28811943/reviewing-the-emergence-of-lactococcus-garvieae-a-case-of-catheter-associated-urinary-tract-infection-caused-by-lactococcus-garvieae-and-escherichia-coli-coinfection
#18
Tatvam T Choksi, Farhan Dadani
Lactococcus garvieae is considered a low virulence organism which is rarely associated with human infections. Most of the reported cases have been associated with bacteremia with or without endocarditis. We report a rare case of catheter associated urinary tract infection (CAUTI) caused by Lactococcus garvieae and Escherichia coli coinfection without any bacteremia in a patient with indwelling urinary catheter placed for benign prostatic hyperplasia (BPH). The patient also had a history of gastroesophageal reflux disease (GERD) with long standing famotidine treatment...
2017: Case Reports in Infectious Diseases
https://www.readbyqxmd.com/read/28754462/in-vitro-susceptibility-of-candida%C3%A2-albicans-clinical-isolates-to-eight-antifungal-agents-in-ouagadougou-burkina-faso
#19
A Zida, A Yacouba, S Bamba, I Sangare, M Sawadogo, T Guiguemde, S Kone, L K Traore, R Ouedraogo-Traore, R T Guiguemde
INTRODUCTION: In recent years, the infection Candida albicans infection worldwide has risen, and the incidence of resistance to traditional antifungal therapies is also increasing. The aim of this study was to evaluate in vitro susceptibility of C. albicans clinical isolates to eight antifungal agents in Ouagadougou. MATERIALS AND METHODS: A cross-sectional study was conducted from January 2013 to December 2015 at Yalgado Ouédraogo University Teaching Hospital...
July 25, 2017: Journal de Mycologie Médicale
https://www.readbyqxmd.com/read/28749780/the-prevalence-of-extended-spectrum-beta-lactamase-producing-multidrug-resistant-escherichia-coli-in-poultry-chickens-and-variation-according-to-farming-practices-in-punjab-india
#20
Charles H Brower, Siddhartha Mandal, Shivdeep Hayer, Mandeep Sran, Asima Zehra, Sunny J Patel, Ravneet Kaur, Leena Chatterjee, Savita Mishra, B R Das, Parminder Singh, Randhir Singh, J P S Gill, Ramanan Laxminarayan
BACKGROUND: Agricultural use of antimicrobials in subtherapeutic concentrations is increasing in response to the rising demand for food animal products worldwide. In India, the use of antimicrobials in food animal production is unregulated. Research suggests that many clinically important antimicrobials are used indiscriminately. This is the largest study to date in India that surveys poultry production to test for antimicrobial resistance and the occurrence of extended-spectrum β-lactamases (ESBLs) modulated by farming and managerial practices...
July 20, 2017: Environmental Health Perspectives
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