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Ina Willemsen, Jan Kluytmans
Background: Infection control needs user-friendly standardized instruments to measure the compliance to guidelines and to implement targeted improvement actions. This abstract describes a tool to measure the quality of infection control and antimicrobial use, the Infection Risk Scan (IRIS). It has been applied in a hospital, several nursing homes and a rehabilitation clinic in the Netherlands. Method: The IRIS consists of a set of objective reproducible measurements, combining patient- and healthcare related variables, such as: hand hygiene compliance, environmental contamination using ATP measurements, prevalence of resistant microorganisms by active screening, availability of infection control preconditions, personal hygiene of healthcare workers, appropriate use of indwelling medical devices and appropriate use of antimicrobials...
2018: Antimicrobial Resistance and Infection Control
Irene Ortega Blázquez, María J Grande Burgos, Rubén Pérez-Pulido, Antonio Gálvez, Rosario Lucas
The aim of this study was to determine the impact of activated plastic films with thymol and enterocin AS-48 and high-hydrostatic pressure (HP) treatment on the bacterial load and bacterial diversity of vacuum-packaged sea bream fillets under refrigerated storage for 10 days. The activated film and the HP treatment reduced aerobic mesophiles viable counts by 1.46 and 2.36 log cycles, respectively, while the combined treatment achieved a reduction of 4.13 log cycles. HP and combined treatments resulted in longer delays in bacterial growth...
2018: Frontiers in Microbiology
Luís Belo, Isa Serrano, Eva Cunha, Carla Carneiro, Luis Tavares, L Miguel Carreira, Manuela Oliveira
BACKGROUND: Most of surgical site infections (SSI) are caused by commensal and pathogenic agents from the patient's microbiota, which may include antibiotic resistant strains. Pre-surgical asepsis of the skin is one of the preventive measures performed to reduce SSI incidence and also antibiotic resistance dissemination. However, in veterinary medicine there is no agreement on which biocide is the most effective. The aim of this study was to evaluate the effectiveness of two pre-surgical skin asepsis protocols in dogs...
March 14, 2018: BMC Veterinary Research
Li Chen, Jilei Zhang, Jiawei Wang, Patrick Butaye, Patrick Kelly, Min Li, Feng Yang, Jiansen Gong, Afrah Kamal Yassin, Weina Guo, Jing Li, Chunlian Song, Chengming Wang
Antimicrobial resistance against colistin has emerged worldwide threatening the efficacy of one of the last-resort antimicrobials used for the treatment of Enterobacteriaceae. To investigate the presence of the recently identified colistin resistance genes (mcr-4, mcr-5) in China, we established PCRs to detect mcr-4 and mcr-5 on 213 anal and 1,339 nasal swabs from apparently healthy pigs (n = 1,454) in nine provinces, and 1,696 cloacal and 1,647 oropharyngeal samples from poultry (n = 1,836) at live-bird markets in 24 provinces of China...
2018: PloS One
Y Yagel, H Nativ, K Riesenberg, L Nesher, L Saidel-Odes, R Smolyakov
Infections caused by extended-spectrum β-lactamase-producing Enterobacteriaceae (ESBL-E) have become increasingly prevalent, posing a serious public threat worldwide. It is commonly believed that untreated urinary tract infections (UTI) and asymptomatic bacteriuria (ABU) during pregnancy are associated with poor obstetric outcomes. Currently, there is a paucity of data regarding the outcomes or risk factors of such ESBL-E infections in pregnant women. We conducted a retrospective 1:2 matched case-control study of hospitalised pregnant women with ESBL-E- vs...
March 14, 2018: Epidemiology and Infection
Elerson Gaetti-Jardim, Ellen Cristina Gaetti Jardim, Christiane Marie Schweitzer, Júlio Cesar Leite da Silva, Murilo Moura Oliveira, Danilo Chizzolini Masocatto, Cauê Monteiro Dos Santos
OBJECTIVE: This case-control study aimed to evaluate the effects of conventional radiotherapy (RT) on the prevalence and populations of oral microorganisms in head and neck cancer patients who did not receive adequate preventive dental care. It was hypothesized that side effects of radiotherapy could be associated with radiation dose, microbiological aspects, and socioeconomic conditions of the patients. DESIGN: Twenty-eight dentate patients with head and neck cancer submitted to RT were included in the study...
January 8, 2018: Archives of Oral Biology
Joe D Piper, Salim Mwarumba, Moses Ngari, Benedict Mvera, Susan Morpeth, James A Berkley
For children with acute malnutrition, ready-to-use therapeutic foods (RUTF) are lifesaving treatments. In 2012, detailed testing detected Enterobacteriaceae including Cronobacter species at low levels in RUTF from all UNICEF-approved producers. Cronobacter in milk feeds has previously been associated with severe neonatal infections. Thus, given the susceptibility of severely malnourished children to invasive bacterial infections, concerns arose about the potential for Cronobacter infections from RUTF. This led to widespread production and supply problems in emergency feeding programmes...
March 13, 2018: Paediatrics and International Child Health
R Cantón, E Loza, J Aznar, R Barrón-Adúriz, J Calvo, F J Castillo, E Cercenado, R Cisterna, F González-Romo, J L López-Hontangas, A I Suárez-Barrenechea, F Tubau, B Molloy, D López-Mendoza
OBJECTIVE: The SMART (Study for Monitoring Antimicrobial Resistance Trends) surveillance study monitors antimicrobial susceptibility and extended spectrum β-lactamases (ESBLs) in Gram-negative bacilli recovered from intra-abdominal infections (IAI). METHODS: Antimicrobial susceptibility of 5,343 isolates from IAI recovered in 11 centres during the 2011-2015 SMART-Spain program was analysed by standard microdilution (EUCAST criteria) and compared with that from 2002-2010...
March 12, 2018: Revista Española de Quimioterapia: Publicación Oficial de la Sociedad Española de Quimioterapia
Omnia A Shaker, Howayda E Gomaa, Shereen A ElMasry, Rania M Abdel Halim, Amany H Abdelrahman, Jackline S Kamal
AIM: To evaluate the diagnostic performance of MDI and temocillin disk (30 μg) for detection of carbapenem-resistant Enterobacteriaceae in comparison to real-time PCR. MATERIAL AND METHODS: Fifty specimens submitted to the Microbiology Laboratory of Ain Shams University Hospitals and showed resistance to carbapenem drugs through routine culture and susceptibility testing, were assessed by both temocillin disk (30 μg) and MDI set to detect carbapenem-resistant Enterobacteriaceae ...
February 15, 2018: Open Access Macedonian Journal of Medical Sciences
Bing Dong, Shaoshuai Liu, Chunlin Wang, Yunhe Cao
Objective: This study was designed to investigate the effects of an Aspergillus sulphureus xylanase expressed in Pichia pastoris on the growth performance, nutrient digestibility and gut microbes in weanling pigs. Methods: A total of 180 weanling pigs (initial body weights were 8.47 ± 1.40 kg) were assigned randomly to 5 dietary treatments. Each treatment had 6 replicates with 6 pigs per replicate. The experimental diets were wheat based with supplementation of 0, 500, 1000, 2000 and 4000 U xylanase/kg...
March 13, 2018: Asian-Australasian Journal of Animal Sciences
Martin Everett, Nicolas Sprynski, Alicia Coelho, Jérôme Castandet, Maëlle Bayet, Juliette Bougnon, Clarisse Lozano, David T Davies, Simon Leiris, Magdalena Zalacain, Ian Morrissey, Sophie Magnet, Kirsty Holden, Peter Warn, Filomena De Luca, Jean-Denis Docquier, Marc Lemonnier
Infections caused by carbapenem-resistant Enterobacteriaceae (CRE) are increasingly prevalent and have become a major worldwide threat to human health. Carbapenem resistance is driven primarily by the acquisition of β-lactamase enzymes which are able to degrade carbapenem antibiotics (hence termed carbapenemases) and can result in high levels of resistance and treatment failure. Clinically relevant carbapenemases include both serine-β-lactamases (SBLs, e.g. KPC-2 and OXA-48) and metallo-β-lactamases (MBLs), such as NDM-1...
March 12, 2018: Antimicrobial Agents and Chemotherapy
M G Vossen, L Ehmann, S Pferschy, A Maier-Salamon, M Haidinger, C Weiser, J M Wenisch, K Saria, C Kajahn, S Jilch, R Lemmerer, M Bécède, M Zeitlinger, C Kloft, W Jäger, F Thalhammer
OBJECTIVES: Doripenem is a broad-spectrum parenteral carbapenem with enhanced activity against Pseudomonas aeruginosa and Enterobacteriaceae. Current dosing regimens recommend the administration of 0.25-0.5 g once daily in patients undergoing intermittent renal replacement therapy. As patients are usually dialyzed thrice weekly, we aimed to investigate a 1-g post-hemodialysis regimen, thus reducing treatment costs and enhancing patient compliance. A second objective of this trial was to describe the pharmacokinetics of intradialytic doripenem...
March 12, 2018: Antimicrobial Agents and Chemotherapy
Caroline M Coope, Neville Q Verlander, Annegret Schneider, Susan Hopkins, William Welfare, Alan P Johnson, Bharat Patel, Isabel Oliver
BACKGROUND: Following hospital outbreaks of carbapenemase-producing Enterobacteriaceae (CPE), Public Health England published a toolkit in December 2013 to promote the early detection, management and control of CPE colonisation and infection in acute hospital settings. AIM: This evaluation aimed to examine awareness, uptake, implementation and usefulness of the CPE toolkit and identify potential barriers and facilitators to its adoption in order to inform future guidance...
March 9, 2018: Journal of Hospital Infection
Chia-Ying Liu, Chih-Cheng Lai, Hsiu-Tzy Chiang, Min-Chi Lu, Ling-Fang Wang, Tsai-Ling Tsai, Mei-Yu Kang, Yi-Ni Jan, Yi-Ting Lo, Wen-Chien Ko, Shu-Hui Tseng, Chun-Ming Lee, Po-Ren Hsueh
BACKGROUND/PURPOSE: This study investigated the distribution and persistence of multidrug resistant organisms (MDROs) including methicillin-resistant Staphylococcus aureus (MRSA), carbapenem-resistant Enterobacteriaceae (CRE), carbapenem-resistant Pseudomonas aeruginosa (CRPA), and multidrug-resistant Acinetobacter baumannii (MDRAB) in six long-term care facilities (LTCFs). METHODS: We investigated the distribution of MDROs in residents of six LTCFs and their environments from January to December 2016 (intervention period)...
February 21, 2018: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
Carole Ayoub Moubareck, Shaimaa F Mouftah, Tibor Pál, Akela Ghazawi, Dalal H Halat, Anju Nabi, Mouza A AlSharhan, Zulfa O AlDeesi, Christabel C Peters, Handan Celiloglu, Manjunath Sannegowda, Dolla K Sarkis, Ágnes Sonnevend
Few studies have addressed the molecular epidemiology of carbapenem resistant Enterobacteriaceae (CRE) isolates in the Arabian Peninsula, and such investigations have been missing from Dubai, a major economical, tourism and medical centre of the region. The antibiotic susceptibility, the carbapenemase type produced, and the clonality of 89 CRE strains isolated in five major Dubai hospitals in June 2015 - June 2016 were determined. Thirty three percent of the collection of 70 K. pneumoniae, 13 E. coli and 6 other Enterobacteriaceae were extremely drug resistant, 27% were resistant to colistin, and 4...
March 9, 2018: International Journal of Antimicrobial Agents
Elisabetta Nucleo, Mariasofia Caltagirone, Vittoria Mattioni Marchetti, Roberto D'Angelo, Elena Fogato, Massimo Confalonieri, Camilla Reboli, Albert March, Ferisa Sleghel, Gertrud Soelva, Elisabetta Pagani, Richard Aschbacher, Roberta Migliavacca, Laura Pagani
Background: Rationale and aims of the study were to compare colonization frequencies with MDR bacteria isolated from LTCF residents in three different Northern Italian regions, to investigate risk factors for colonization and the genotypic characteristics of isolates. The screening included Enterobacteriaceae expressing extended-spectrum β-lactamases (ESβLs) and high-level AmpC cephalosporinases, carbapenemase-producing Enterobacteriaceae , Pseudomonas aeruginosa or Acinetobacter baumannii , methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant enterococci (VRE)...
2018: Antimicrobial Resistance and Infection Control
A F Andeta, D Vandeweyer, F Woldesenbet, F Eshetu, A Hailemicael, F Woldeyes, S Crauwels, B Lievens, J Ceusters, K Vancampenhout, L Van Campenhout
Enset (Ensete ventricosum) provides staple food for 15 million people in Ethiopia after fermentation into kocho. The fermentation process has hardly been investigated and is prone to optimization. The aim of this study was to investigate the physicochemical and microbial dynamics of fermentation practices in the Gamo highlands. These practices show local variation, but two steps were omnipresent: scraping of the pseudostem and fermenting it in a pit or a bamboo basket. Enset plants were fragmented and fermented for two months in order to investigate the physicochemical (temperature, moisture content, pH and titratable acidity) and microbial dynamics (total viable aerobic counts, counts of Enterobacteriaceae, lactic acid bacteria, yeasts and moulds and Clostridium spores counts, and Illumina Miseq sequencing)...
August 2018: Food Microbiology
Tareq M Osaili, Akram R Alaboudi, Heba N Al-Quran, Anas A Al-Nabulsi
Enterobacteriaceae family can contaminate fresh produce at any stage of production either at pre-harvest or post-harvest stages. The objectives of the current study were to i) identify Enterobacteriaceae species on iceberg lettuce, ii) compare the decontamination efficiency of water, sodium hypochlorite (free chlorine 200 ppm), peroxyacetic acid (PA 80 ppm; Kenocid 2100® ) or their combinations and ionizing radiation against Enterobacteriaceae on shredded iceberg lettuce and iii) determine the survival of Enterobacteriaceae post-treatment storage of shredded iceberg lettuce at 4, 10 and 25 °C, for up to 7 days...
August 2018: Food Microbiology
Andrea Osimani, Vesna Milanović, Federica Cardinali, Cristiana Garofalo, Francesca Clementi, Marina Pasquini, Paola Riolo, Sara Ruschioni, Nunzio Isidoro, Nino Loreto, Elena Franciosi, Kieran Tuohy, Annalisa Petruzzelli, Martina Foglini, Claudia Gabucci, Franco Tonucci, Lucia Aquilanti
Tenebrio molitor represents one of the most popular species used for the large-scale conversion of plant biomass into protein and is characterized by high nutritional value. In the present laboratory study, the bacterial biota characterizing a pilot production chain of fresh T. molitor larvae was investigated. To this end, different batches of fresh mealworm larvae, their feeding substrate (wheatmeal) and frass were analyzed by viable microbial counts, PCR-DGGE and Illumina sequencing. Moreover, the occurrence of Coxiella burnetii, Pseudomonas aeruginosa and Shiga toxin-producing E...
March 7, 2018: International Journal of Food Microbiology
Fabio Arena, Tommaso Giani, Alberto Antonelli, Olga Lorenza Colavecchio, Patrizia Pecile, Bruno Viaggi, Riccardo Favilli, Gian Maria Rossolini
We evaluated the performance of an automated, rapid (TAT 4-8 h), liquid-culture method for carbapenem-resistant Enterobacteriaceae (CRE) detection from rectal swabs, in a setting of KPC-producing Klebsiella pneumoniae endemicity. With 600 samples (22 positive for CRE, 3.7%), the system sensitivity and specificity, at 8 h, were 100% and 99.2%, respectively.
March 7, 2018: Journal of Microbiological Methods
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