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https://www.readbyqxmd.com/read/28214647/fate-of-antimicrobials-in-duckweed-lemna-minor-wastewater-treatment-systems
#1
Evangelia I Iatrou, Georgia Gatidou, Dimitrios Damalas, Nikolaos S Thomaidis, Athanasios S Stasinakis
The fate of four antimicrobials (cefadroxil, CFD; metronidazole, METRO; trimethoprim, TRI; sulfamethoxazole, SMX) was studied in Lemna minor systems and the role of different mechanisms on their removal was evaluated. All micropollutants were significantly removed in batch experiments with active Lemna minor; the highest removal was observed for CFD (100% in 14 d), followed by METRO (96%), SMX (73%) and TRI (59%) during 24 d of the experiment. Calculation of kinetic constants for hydrolysis, photodegradation, sorption to biomass and plant uptake revealed significant differences depending on the compound and the studied mechanism...
February 13, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28213015/lettuce-and-fruits-as-a-source-of-multidrug-resistant-acinetobacter-spp
#2
Ana Carvalheira, Joana Silva, Paula Teixeira
The role of ready-to-eat products as a reservoir of pathogenic species of Acinetobacter remains unclear. The objective of the present study was to evaluate the presence of Acinetobacter species in lettuces and fruits marketed in Portugal, and their susceptibility to antimicrobials. Acinetobacter spp. were isolated from 77.9% of the samples and these microorganisms were also found as endophytes (i.e. present within the plant tissue) in 12 of 20 samples of lettuces analysed. Among 253 isolates that were identified as belonging to this genus, 181 presented different PFGE profiles, representing different strains...
June 2017: Food Microbiology
https://www.readbyqxmd.com/read/28210461/the-epidemiology-and-antimicrobial-resistance-of-cholera-cases-in-iran-during-2013
#3
Hossein Masoumi-Asl, Mohammad Mehdi Gouya, Mohammad Rahbar, Roghieh Sabourian
BACKGROUND AND OBJECTIVES: Cholera is an endemic diarrheal disease in Iran, caused by Vibrio Cholerae. The epidemiology, transmission route, environmental determinants and antimicrobial resistant pattern of cholera have been changed during recent years. In this study the epidemiology and antimicrobial resistance of cholera in Iran during 2013 outbreak was investigated. MATERIALS AND METHODS: A retrospective, cross-sectional study was carried out using cholera national surveillance system collected data in 2013...
August 2016: Iranian Journal of Microbiology
https://www.readbyqxmd.com/read/28199151/antimicrobial-resistance-percentages-of-salmonella-and-shigella-in-seafood-imported-to-jordan-higher-percentages-and-more-diverse-profiles-in-shigella
#4
Mohammad M Obaidat, Alaa E Bani Salman
This study determined the prevalence and antimicrobial resistance of human-specific ( Shigella spp.) and zoonotic ( Salmonella enterica ) foodborne pathogens in internationally traded seafood. Sixty-four Salmonella and 61 Shigella isolates were obtained from 330 imported fresh fish samples from Egypt, Yemen, and India. The pathogens were isolated on selective media, confirmed by PCR, and tested for antimicrobial resistance. Approximately 79 and 98% of the Salmonella and Shigella isolates, respectively, exhibited resistance to at least one antimicrobial, and 8 and 49% exhibited multidrug resistance (resistance to three or more antimicrobial classes)...
February 15, 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28197394/antibiogram-of-bacteria-isolated-from-automated-teller-machines-in-hamadan-west-iran
#5
Hassan Mahmoudi, Mohammad Reza Arabestani, Mohammad Yousef Alikhani, Iraj Sedighi, Hamed Farhadi Kohan, Mohammad Molavi
Aim: Bacteria are ubiquitous in the environment. In keeping with the continued expansion of urbanization and the growing population, an increasing number of people use automated banking, i.e. automated teller machines (ATMs). The aim of this study was to investigate the bacterial contamination and its antibiotic sensitivity on computer keyboards located at ATMs in Hamadan province, Iran. Method: Out of 360 ATMs at four locations in Hamadan, 96 were randomly selected for this study. The antibiotic susceptibility pattern of all isolates was determined by the agar disk diffusion method using gentamicin (10 µg), vancomycin (30 µg), trimethoprim/sulfamethoxazole (25 µg), amikacin (30 µg), tobramycin (10 µg), cephalotin (30 µg), norfloxacin (5 µg), and ceftizoxim (30 µg) disks...
2017: GMS Hygiene and Infection Control
https://www.readbyqxmd.com/read/28195616/clinical-features-and-management-of-subretinal-abscesses-secondary-to-methicillin-resistant-staphylococcus-aureus-endogenous-endophthalmitis
#6
Jorge Fortun, Yasha S Modi, Angela Bessette, Jordan Heffez, Petros Carvounis, Daniel S Petkovsek, Nicholas G Anderson, Daniel Martin, Sunil Srivastava
BACKGROUND AND OBJECTIVE: To describe the clinical features, management, and immediate outcomes of patients with subretinal abscesses secondary to methicillin-resistant Staphylococcus aureus (MRSA) endogenous endophthalmitis. PATIENTS AND METHODS: Eleven eyes of seven patients were identified by retrospective chart review. Demographics, initial presentation, examination findings, imaging, cultures, treatments, and short-term outcomes were reviewed. RESULTS: Eleven eyes of seven patients presented with subretinal abscesses secondary to MRSA endogenous endophthalmitis...
February 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28194411/antibiotic-resistance-of-campylobacter-recovered-from-faeces-and-carcasses-of-healthy-livestock
#7
Akosua B Karikari, Kwasi Obiri-Danso, Enoch H Frimpong, Karen A Krogfelt
Campylobacter is of major significance in food safety and human and veterinary medicine. This study highlighted resistance situation in the area of veterinary public health in Ghana. Using selective mCCDA agar, isolates were confirmed phenotypically on API CAMPY and genotypically by multiplex PCR of IpxA gene. The susceptibility profile of species to common and relevant antibiotics was determined by the Kirby-Bauer disk diffusion method. Cattle, sheep, goat, and pig faecal samples analysed, respectively, yielded 13...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28194090/prevalence-and-characterization-of-salmonella-among-humans-in-ghana
#8
Linda Aurelia Andoh, Shabana Ahmed, John Elmerdahl Olsen, Kwasi Obiri-Danso, Mercy Jemima Newman, Japheth Awuletey Opintan, Lisa Barco, Anders Dalsgaard
BACKGROUND: Non-typhoidal Salmonella (NTS) is a public health problem worldwide and particularly in Africa with high disease burden. This study characterized Salmonella isolates from humans in Ghana to determine serovar distribution, phage types, and antimicrobial resistance. Further, the clonal relatedness among isolates was determined. METHODS: One hundred and thirty-seven Salmonella isolates (111 clinical and 26 public toilet) were characterized using standard serotyping, phage typing, and antimicrobial susceptibility testing methods...
2017: Tropical Medicine and Health
https://www.readbyqxmd.com/read/28193660/antimicrobial-resistance-of-escherichia-coli-urinary-isolates-in-the-veterans-affairs-healthcare-system
#9
Haley J Morrill, Jacob B Morton, Aisling R Caffrey, Lan Jiang, David Dosa, Leonard A Mermel, Kerry L LaPlante
We reviewed almost 300,000 clinical E. coli urine isolates (2009-2013) from 127 facilities to assess antibiotic resistance among Veterans Affairs healthcare system patients using Clinical Laboratory Standards Institute and Centers for Disease Control and Prevention National Healthcare Safety Network definitions/guidance. Resistance to fluoroquinolones and trimethoprim/sulfamethoxazole approached 30%. Resistance to nitrofurantoin, anti-pseudomonal penicillin/beta-lactamase inhibitors, and carbapenems remained less than 10%...
February 13, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28192433/review-of-21-cases-of-mycetoma-from-1991-to-2014-in-rio-de-janeiro-brazil
#10
Felipe Maurício Soeiro Sampaio, Bodo Wanke, Dayvison Francis Saraiva Freitas, Janice Mery Chicarino de Oliveira Coelho, Maria Clara Gutierrez Galhardo, Marcelo Rosandiski Lyra, Maria Cristina da Silva Lourenço, Rodrigo de Almeida Paes, Antonio Carlos Francesconi do Valle
Mycetoma is caused by the subcutaneous inoculation of filamentous fungi or aerobic filamentous bacteria that form grains in the tissue. The purpose of this study is to describe the epidemiologic, clinic, laboratory, and therapeutic characteristics of patients with mycetoma at the Oswaldo Cruz Foundation in Rio de Janeiro, Brazil, between 1991 and 2014. Twenty-one cases of mycetoma were included in the study. There was a predominance of male patients (1.3:1) and the average patient age was 46 years. The majority of the cases were from the Southeast region of Brazil and the feet were the most affected anatomical region (80...
February 13, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28187785/longevity-and-gender-as-the-risk-factors-of-methicillin-resistant-staphylococcus-aureus-infections-in-southern-poland
#11
Monika Pomorska-Wesołowska, Anna Różańska, Joanna Natkaniec, Barbara Gryglewska, Anna Szczypta, Mirosława Dzikowska, Agnieszka Chmielarczyk, Jadwiga Wójkowska-Mach
BACKGROUND: The proportion of older people among the general population has risen. Staphylococcus aureus (SA) constitutes a significant problem. Underlying disease and functional debility, predispose the older adult to staphylococcal carriage and infection, specially bloodstream infection and pneumonia. METHODS: This is a retrospective cohort study of older patients with SA infections. We analyzed a database containing the results of laboratory cultures from patients treated in 2013 for SA infections and selected 613 hospitalized and non-hospitalized people aged ≥60 years...
February 10, 2017: BMC Geriatrics
https://www.readbyqxmd.com/read/28185222/trimethoprim-sulfamethoxazole-therapy-for-patients-with-carbapenemase-producing-klebsiella-pneumoniae-infections-retrospective-single-center-case-series
#12
Rita Murri, Barbara Fiori, Teresa Spanu, Ilaria Mastrorosa, Francesca Giovannenze, Francesco Taccari, Claudia Palazzolo, Giancarlo Scoppettuolo, Giulio Ventura, Maurizio Sanguinetti, Roberto Cauda, Massimo Fantoni
OBJECTIVE: The objective of the study was to evaluate the efficacy and tolerability of trimethoprim-sulfamethoxazole (also known as co-trimoxazole, TMPS) to treat Klebsiella pneumoniae (Kp)-K. pneumoniae carbapenemase (KPC) infections. METHODS: Clinical data of patients with a TMPS-susceptible Kp-KPC infection were collected as a case series. RESULTS: We report clinical outcomes and tolerability for 14 patients infected by Kp-KPC strains susceptible to TMPS, including three bloodstream infections...
February 9, 2017: Infection
https://www.readbyqxmd.com/read/28173787/first-time-identification-of-pandoraea-sputorum-from-a-patient-with-cystic-fibrosis-in-argentina-a-case-report
#13
Pablo F Martina, Mónica Martínez, Guillermo Frada, Florencia Alvarez, Lorena Leguizamón, Claudia Prieto, Carolina Barrias, Marisa Bettiol, Antonio Lagares, Alejandra Bosch, Julián Ferreras, Martha Von Specht
BACKGROUND: Pandoraea species are considered emerging pathogens in the context of cystic fibrosis (CF) and are difficult to identify by conventional biochemical methods. These multidrug resistant bacteria remain poorly understood particularly in terms of natural resistance, mechanisms of acquired resistance and impact on the prognosis of the disease and the lung function. Among them, Pandoraea sputorum has been previously described in few cases of CF patients from Spain, Australia, France and United States, underlining the need of more clinical data for a better knowledge of its pathogenicity...
February 7, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28167857/high-frequency-of-vancomycin-resistant-enterococcus-faecalis-in-children-an-alarming-concern
#14
F Sabouni, Z Movahedi, S Mahmoudi, B Pourakbari, S Keshavarz Valian, S Mamishi
INTRODUCTION: Enterococcus spp. is considered as important etiological agents of nosocomial infections. However, a little is known about the epidemiology of vancomycin resistant Enterococcus faecalis (VREF). The aim of this study was to investigate the frequency of VREF and detecting of two prevalent resistance genes (vanA, vanB) at Children Medical Center Hospital, an Iranian referral pediatric Hospital. MATERIALS AND METHODS: During January 2013 to December 2013, 180 E...
December 2016: Journal of Preventive Medicine and Hygiene
https://www.readbyqxmd.com/read/28166707/isolation-and-partial-characterization-of-streptococcus-suis-from-clinical-cases-in-cattle
#15
Ogi Okwumabua, Hanna Peterson, Hui-Min Hsu, Phil Bochsler, Melissa Behr
Sixteen isolates of gram-positive, coccoid bacteria were obtained from clinical cases of diverse conditions in cattle and identified as Streptococcus suis using 16S ribosomal DNA gene sequencing and other bacterial identification methods. None of the isolates could be assigned to any of the known S. suis capsular types. Virulence-associated gene profiling that targeted muramidase-released protein, extracellular protein factor, suilysin, 89-kb pathogenicity island, and arginine deiminase ( arcA) genes were negative except for 1 isolate that was arcA positive...
January 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28162982/revival-of-old-antibiotics-needs-the-state-of-evidence-and-expectations
#16
Hiba Zayyad, Noa Eliakim-Raz, Leonard Leibovici, Mical Paul
The gap between the emergence of antibiotic resistance and new antibiotic development has drawn attention to old antibiotics whose spectrum of coverage frequently comprises highly resistant bacteria. However, these antibiotics have frequently not undergone the structured process of antibiotic development of modern antibiotics, from pharmacokinetic/pharmacodynamic (PK/PD) studies establishing safe and effective dosing, establishment of susceptibility breakpoints, to clinical trials establishing clinical safety and effectiveness...
February 2, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28160148/frequent-occurrence-of-trimethoprim-sulfamethoxazole-hetero-resistant-staphylococcus-aureus-isolates-in-different-african-countries
#17
C Coelho, H de Lencastre, M Aires-de-Sousa
High rates of trimethoprim/sulfamethoxazole (SXT) resistance, a combination of two antifolate antibiotics trimethoprim (TMP) and sulfamethoxazole (SMZ), have been reported among Staphylococcus aureus isolates in Portuguese-speaking African countries. Our study aimed to evaluate the occurrence of TMP resistance markers in major SXT(R) methicillin-resistant S. aureus (MRSA) clones from these countries. We accessed also different fitness traits that could explain the success of these isolates over the Brazilian MRSA (the most successful SXT(R) MRSA clone worldwide but never identified in these countries)...
February 3, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28145162/early-use-of-corticosteroids-in-infants-with-a-clinical-diagnosis-of-pneumocystis-jiroveci-pneumonia-in-malawi-a-double-blind-randomised-clinical-trial
#18
Laura Newberry, Bernadette O'Hare, Neil Kennedy, Andrew Selman, Sofia Omar, Pamela Dawson, Kim Stevenson, Yo Nishihara, Samantha Lissauer, Elizabeth Molyneux
BACKGROUND: Pneumocystis jiroveci pneumonia (PJP) is the most common opportunistic infection in infants with vertically acquired HIV infection and the most common cause of death in HIV-infected infants. OBJECTIVES: To determine whether early administration of adjuvant corticosteroids in addition to standard treatment reduces mortality in infants with vertically acquired HIV and clinically diagnosed PJP when co-infection with cytomegalovirus and other pathogens cannot be excluded...
February 1, 2017: Paediatrics and International Child Health
https://www.readbyqxmd.com/read/28144190/antibiotic-resistance-in-urinary-isolates-of-escherichia-coli
#19
Amila Abduzaimovic, Mufida Aljicevic, Velma Rebic, Sabina Mahmutovic Vranic, Kadrija Abduzaimovic, Sabina Sestic
OBJECTIVES: The aim of this study was to examine the presence of antimicrobial resistance / susceptibility strains of Escherichia coli in inpatients and outpatients. MATERIALS AND METHODS: It is a retrospective study carried out at the Department of Microbiology, Parasitology and Virology Faculty of Medicine, University of Sarajevo. In cooperation with the Microbiological laboratory of the Cantonal Hospital Zenica and the Microbiological laboratory of the General Hospital Tesanj, 3863 urine samples were processed in the period from March 1(st) to March 31(st) 2016...
December 2016: Materia Socio-medica
https://www.readbyqxmd.com/read/28137937/antibiotic-susceptibility-and-molecular-analysis-of-invasive-haemophilus-influenzae-in-canada-2007-to-2014
#20
Raymond S W Tsang, Michelle Shuel, Kathleen Whyte, Linda Hoang, Gregory Tyrrell, Greg Horsman, John Wylie, Frances Jamieson, Brigitte Lefebvre, David Haldane, Rita R Gad, Gregory J German, Robert Needle
BACKGROUND: Previously we studied the antibiotic susceptibility of invasive Haemophilus influenzae collected in Canada from 1990 to 2006 and characterized isolates by serotype, MLST and ftsI gene sequencing for significant PBP3 mutations. OBJECTIVES: To provide an update based on isolates collected from 2007 to 2014. METHODS: A total of 882 case isolates were characterized by serotype using slide agglutination and PCR. MLST was carried out to determine ST...
January 30, 2017: Journal of Antimicrobial Chemotherapy
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