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mrsa pneumonia

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https://www.readbyqxmd.com/read/29054550/-mlva-analysis-and-virulence-profile-of-community-acquired-methicillin-resistant-staphylococcus-aureus-causing-infections-in-paraguayan-children
#1
Fátima Rodríguez Acosta, Wilma D Basualdo Acuña, Héctor Castro, Ana Campuzano, María L Macchi, Juana Ortellado de Canese, Patricia Almada, Mónica Rodríguez, Lorena Grau, Gladys Velázquez, Carmen Espínola, Gloria C Samudio Domínguez, Gloria Gómez, Letizia Carpinelli, Rosa M Guillén Fretes
Community-acquired methicillin-resistant Staphylococcus aureus (CA-MRSA) is one of the first causes of skin and soft tissue infections, and can also produce severe diseases such as osteomyelitis and pneumonia. The aim of this descriptive study was to determine the SCCmec type and virulence profile and to study the genetic diversity by MLVA analysis of 21 CA-MRSA isolates that infected Paraguayan children in 2010. The SCCmec type and virulence factors were performed by PCR and genetic diversity by MLVA (multiple locus variable analysis)...
October 17, 2017: Revista Argentina de Microbiología
https://www.readbyqxmd.com/read/29051092/a-study-on-the-targeted-surveillance-of-nosocomial-infection-in-intensive-care-units-of-177-hospitals-in-jiangsu-province-of-china
#2
Yang Li, Xiao-Li Cao, Hai Ge, Yi-Hong Jiang, Hong Zhou, Wei Zheng
BACKGROUND: Nosocomial infections (NIs) impact care and costs in hospitals across the globe. There are minimal data on targeted surveillance of NI in intensive care units (ICUs), and data specific to the risk factors for NI are especially limited. METHODS: One hundred seventy-seven secondary and tertiary hospitals performed NI targeted surveillance in their ICUs. The data were collected and summarized by Minke software, then fed back once per quarter. RESULTS: The incidence of NI appeared to decrease, and the incidence of NI per 1000 patient-days and adjusted incidence were 25...
October 16, 2017: Journal of Hospital Infection
https://www.readbyqxmd.com/read/29045693/pharmacokinetics-of-ceftaroline-in-a-preterm-infant-with-methicillin-resistant-staphylococcus-aureus-pneumonia
#3
Sara N Salerno, Janice Bernhardt, Matthew Laughon, Ravi Jhaveri, Matthew Massaro, Daniel Gonzalez
We report here the first pharmacokinetic-pharmacodynamic relationship for ceftaroline in a preterm infant born at <28 weeks' gestational age who was given ceftaroline (8.5 mg/kg every 8 hours) for pneumonia attributable to methicillin-resistant Staphyloccocus aureus. This dose of ceftaroline was adequate to achieve the pharmacodynamic endpoint associated with efficacy for methicillin-resistant Staphyloccocus aureus.
October 16, 2017: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/29039717/high-prevalence-of-multidrug-resistant-bacteria-in-libyan-war-casualties-admitted-to-a-tertiary-care-hospital-germany
#4
Benedikt Lohr, Yvonne Pfeifer, Ursel Heudorf, Christoph Rangger, Douglas E Norris, Klaus-Peter Hunfeld
The ongoing Libyan conflict constantly causes victims among the military and civilian population. Cross-border transfer of patients represents a high risk of introducing multidrug-resistant organisms (MDROs), for example, methicillin-resistant Staphylococcus aureus (MRSA), vancomycin-resistant enterococci, and carbapenem-resistant gram-negative organisms (CROs), into the country of destination. This study assessed the MDRO status in Libyan war casualties (n = 67) admitted to Northwest Medical Centre in Frankfurt/Main, Germany, from August 2016 till January 2017...
October 17, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/29032075/synthesis-structures-and-esi-mass-studies-of-silver-i-derivatives-of-imidazolidine-2-thiones-antimicrobial-potential-and-biosafety-evaluation
#5
Jaspreet K Aulakh, Tarlok S Lobana, Henna Sood, Daljit S Arora, Victoria A Smolinski, Courney E Duff, Jerry P Jasinski
The basic objective of this investigation is to explore potential metallo-organic antimicrobial agents based on silver-heterocyclic-2-thiones. In this respect, a series of silver(I) halide complexes with imidazolidine-2-thiones (L-NR, R=H, Me, Et, Pr(n), Bu(n), Ph), namely, mononuclear [AgX(L-NR)(PPh3)2] (X, R: Cl, Bu, 1; Br, Ph, 7); [AgX(L-NR)3] (Br, Bu, 5; Br, Pr(n), 8) and halogen bridged dinuclear [Ag2(μ-X)2(L-NR)2(PPh3)2] (Cl, Bu(n), 2; Cl, Ph, 3; Cl, Pr(n), 4; Br, Ph, 6) have been synthesized and characterized using modern techniques...
October 7, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/29025395/proposed-risk-factors-for-infection-with-multidrug-resistant-pathogens-in-hemodialysis-patients-hospitalized-with-pneumonia
#6
Jae-Uk Song, Hye Kyeong Park, Hyung Koo Kang, Jonghoo Lee
BACKGROUND: In patients with hemodialysis-associated pneumonia (HDAP), information on both microbiologic features and antimicrobial strategies is limited. The aim of this study is to investigate predictive factors of infection with multidrug-resistant (MDR) pathogens in HDAP patients. METHODS: This was a multicenter, retrospective, and observational study. Enrolled patients were classified into MDR or non-MDR pathogens groups according to culture results. We examined risk factors of infection with MDR pathogens and created a decision support tool using these risk factors...
October 12, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28994446/colonization-of-residents-and-staff-of-an-italian-long-term-care-facility-and-an-adjacent-acute-care-hospital-geriatric-unit-by-multidrug-resistant-bacteria
#7
Albert March, Richard Aschbacher, Ferisa Sleghel, Gertrud Soelva, Malgorzata Kaczor, Roberta Migliavacca, Aurora Piazza, Vittoria Mattioni Marchetti, Laura Pagani, Katia Scalzo, Valentina Pasquetto, Elisabetta Pagani
In 2016, we undertook a point prevalence screening study for Enterobacteriaceae with extended-spectrum β-lactamases (ESBLs), high-level AmpC cephalosporinases and carbapenemases, and also methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin resistant enterococci (VRE) in a long-term care facility (LTCF) and the associated acute care hospital geriatric unit in Bolzano, Northern Italy. Urine samples and rectal, inguinal, oropharyngeal and nasal swabs were plated on selective agars. Demographic data were collected...
October 10, 2017: New Microbiologica
https://www.readbyqxmd.com/read/28991319/-etiology-and-evolution-of-the-osteoarticular-infections-2009-2015-pediatric-hospital-pereira-rossell-uruguay
#8
Carlos Zuníno, Alejandra Vomero, Soledad Pandolfo, Claudia Gutiérrez, Gabriela Algorta, M Catalina Pírez, Gustavo Giachetto
BACKGROUND: The most frequent osteoarticular infections (OAI) etiological agent is Staphylococcus aureus. The prevalence of other microorganisms has changed after the introduction of new vaccines. AIM: To describe the etiology and evolution of the OAIs in children hospitalized in Pediatric Hospital Pereira Rossell between 2009 and 2015. PATIENTS AND METHODS: Joint fluid and bone puncture studies of hospitalized children suspected of OAI. Epidemiological characteristics, isolated microorganisms, complementary tests, initial treatment, complications, and days of hospitalization were analyzed...
June 2017: Revista Chilena de Infectología: órgano Oficial de la Sociedad Chilena de Infectología
https://www.readbyqxmd.com/read/28984451/membrane-active-hydantoin-derivatives-as-antibiotic-agents
#9
Ma Su, Donglin Xia, Peng Teng, Alekhya Nimmagadda, Chao Zhang, Timothy Odom, Annie Cao, Yong Hu, Jianfeng Cai
Hydantoin (imidazolidinedione) derivatives such as nitrofurantoin are small molecules that have aroused considerable interest recently due to their low rate of bacterial resistance. However, their moderate antimicrobial activity may hamper their application combating antibiotic resistance in the long run. Herein, we report the design of bacterial membrane-active hydantoin derivatives, from which we identified compounds that show much more potent antimicrobial activity than nitrofurantoin against a panel of clinically relevant Gram-positive and Gram-negative bacterial strains...
October 6, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28980484/rate-and-incidence-of-adverse-reactions-associated-with-ceftaroline-exposure-importance-of-cutaneous-manifestations
#10
Jeffrey W Jansen, Ryan P Moenster
BACKGROUND: Ceftaroline is a broad-spectrum, methicillin-resistant Staphylococcus aureus (MRSA)-active β-lactam approved for acute bacterial skin and skin structure infections (ABSSSIs) and community-acquired pneumonia. Because of its favorable spectrum and pharmacokinetics, ceftaroline is frequently utilized for infections such as osteomyelitis and endocarditis. Ceftaroline has been associated with neutropenia, but evaluation of other adverse events remains limited. OBJECTIVE: To describe the rates and types of ceftaroline-associated adverse events and determine if patients' baseline allergies affect the rates of an adverse event...
October 1, 2017: Annals of Pharmacotherapy
https://www.readbyqxmd.com/read/28970096/epidemiology-and-microbiological-profile-comparison-between-community-and-hospital-acquired-infections-a-multicenter-retrospective-study-in-lebanon
#11
Roula Matta, Souheil Hallit, Rabih Hallit, Wafaa Bawab, Anne-Marie Rogues, Pascale Salameh
BACKGROUND: The objective of this study is to identify and characterize the species resistance of different pathogens between community acquired and hospital acquired infections pointing at patients' related independent co-morbidities and socio-demographic factors. METHODS: It was a retrospective cohort, multicenter study from five private hospitals located in Beirut and Mount Lebanon. Two hundred fifty-eight adult patients were included. RESULTS: 110 Gram negative pathogens and 26 Gram positive pathogens were implicated in hospital acquired infections...
September 29, 2017: Journal of Infection and Public Health
https://www.readbyqxmd.com/read/28962001/rapid-detection-of-esbl-carbapenemases-mrsa-and-other-important-resistance-phenotypes-within-6-8%C3%A2-h-by-automated-disc-diffusion-antibiotic-susceptibility-testing
#12
Michael Hombach, Marion Jetter, Peter M Keller, Nicolas Blöchliger, Natalia Kolesnik-Goldmann, Erik C Böttger
Background: In principle, automated systems allow rapid reading of disc diffusion AST (rAST) within 6-8 h. Objectives: This study analysed whether rAST can discriminate resistance phenotypes such as ESBL, carbapenemases and MRSA/methicillin-resistant Staphylococcus epidermidis from WT populations. We describe species-drug combinations that may require clinical breakpoint adaptions for early reading due to zone diameter changes during the incubation period. Methods: In total, 1852 clinical strains [ Escherichia coli ( n  =   475), Klebsiella pneumoniae ( n  =   375), Enterobacter cloacae ( n  =   301), Staphylococcus aureus ( n  =   407) and S...
August 9, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28943148/in%C3%A2-vivo-safety-evaluation-of-antibacterial-silver-chloride-nanoparticles-from-streptomyces-exfoliatus-icn25-in-zebrafish-embryos
#13
Appadurai Muthamil Iniyan, Rajaretinam Rajesh Kannan, Francis-Joseph Rosemary Sharmila Joseph, Thankaraj Rajam Jabila Mary, Mani Rajasekar, Puthenpurayil Chellappan Sumy, Arul Maximus Rabel, Dasnamoorthy Ramachandran, Samuel Gnana Prakash Vincent
Silver chloride nanoparticles were synthesized from the cell-free culture supernatant of Streptomyces strain using green synthesis approach with good yield. The nanoparticles were characterized by UV-Vis, IR, SEM, AFM and XRD techniques. These nanoparticles exhibited broad spectrum of antibacterial activity towards Methicillin-resistant Staphylococcus aureus, Methicillin sensitive S. aureus, Escherichia coli, Pseudomonas aeruginosa and Klebsiella pneumonia at ≤ 2 μg/ml minimal inhibitory concentrations...
September 21, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28932746/isolation-identification-and-antimicrobial-susceptibility-of-bacteria-associated-with-waterpipe-contaminants-in-selected-area-of-saudi-arabia
#14
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/28930178/diagnostic-value-of-endotracheal-aspirates-sonication-on-ventilator-associated-pneumonia-microbiologic-diagnosis
#15
Laia Fernández-Barat, Ana Motos, Otavio T Ranzani, Gianluigi Li Bassi, Elisabet Aguilera Xiol, Tarek Senussi, Chiara Travierso, Chiara Chiurazzi, Francesco Idone, Laura Muñoz, Jordi Vila, Miquel Ferrer, Paolo Pelosi, Francesco Blasi, Massimo Antonelli, Antoni Torres
Microorganisms are able to form biofilms within respiratory secretions. Methods to disaggregate such biofilms before utilizing standard, rapid, or high throughput diagnostic technologies may aid in pathogen detection during ventilator associated pneumonia (VAP) diagnosis. Our aim was to determine if sonication of endotracheal aspirates (ETA) would increase the sensitivity of qualitative, semi-quantitative, and quantitative bacterial cultures in an animal model of pneumonia caused by Pseudomonasaeruginosa or by methicillin resistant Staphylococcusaureus (MRSA)...
September 20, 2017: Microorganisms
https://www.readbyqxmd.com/read/28923605/microbial-pathogenicity-and-virulence-mediated-by-integrons-on-gram-positive-microorganisms
#16
REVIEW
Yanmei Li, Ling Yang, Jie Fu, Muxia Yan, Dingqiang Chen, Li Zhang
Gram-positive microorganisms are one of leading pathogenic microorganisms in public health, including several typical "Super Bugs" as methicillin-resistant Staphylococcus aureus, Klebsiella pneumoniae carbapenemase and vancomycin-resistant enterococci, which caused a increasement of infections, clinical failures and expenses. Regarded as a common genetic element responsible for horizontal gene transfer, integrons are widely distributed in various pathogens considered as a determinant in the acquisition and evolution of antibiotic resistance...
October 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28919333/status-of-the-effectiveness-of-contact-lens-disinfectants-in-malaysia-against-keratitis-causing-pathogens
#17
Farhat Abjani, Naveed Ahmed Khan, Suk Yul Jung, Ruqaiyyah Siddiqui
The aim of this study was (i) to assess the antimicrobial effects of contact lens disinfecting solutions marketed in Malaysia against common bacterial eye pathogens and as well as eye parasite, Acanthamoeba castellanii, and (ii) to determine whether targeting cyst wall would improve the efficacy of contact lens disinfectants. Using ISO 14729 Stand-Alone Test for disinfecting solutions, bactericidal and amoebicidal assays of six different contact lens solutions including Oxysept(®), AO SEPT PLUS, OPTI-FREE(®) pure moist(®), Renu(®) fresh™, FreshKon(®) CLEAR and COMPLETE RevitaLens™ were performed using Manufacturers Minimum recommended disinfection time (MRDT)...
September 15, 2017: Experimental Parasitology
https://www.readbyqxmd.com/read/28911341/rapid-detection-of-staphylococcus-aureus-and-related-species-isolated-from-food-environment-cosmetics-a-medical-device-and-clinical-samples-using-the-vitek-ms-microbial-identification-system
#18
Irshad M Sulaiman, Pratik Banerjee, Ying-Hsin Hsieh, Nancy Miranda, Steven Simpson, Khalil Kerdahi
Staphylococcus spp. is considered as one of the most common human-pathogenic bacteria, causing illnesses ranging from nonthreatening skin infections to lethal diseases, including sepsis, pneumonia, bloodstream infections, and food poisoning. The emergence of methicillin-resistant Staphylococcus aureus strains has increased morbidity and mortality and resulted in a major healthcare burden worldwide. Single and multilocus sequence typing have been extensively used in the identification of Staphylococcus species...
September 15, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28910514/pharmacokinetics-of-single-dose-ceftaroline-fosamil-in-children-with-cystic-fibrosis
#19
Jennifer Le, John S Bradley, Sara Hingtgen, Shannon Skochko, Nanette Black, Ronald N Jones, Meerana Lim, Edmund V Capparelli
BACKGROUND: Single-dose pharmacokinetics (PK) and safety of ceftaroline fosamil with population pharmacokinetic/pharmacodynamic (PK/PD) modeling for staphylococcal pneumonia was performed in children with CF. METHODS: Subjects between 6 and 18 years old were evaluated in this phase 1, open-label, single-dose, prospective study using 10 mg/kg (up to 600 mg). Non-compartmental analysis and population-based PK analyses with Monte Carlo simulation (for doses 8-20 mg/kg every 8 h, infused over 1-4 h) were conducted...
November 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/28910379/a-one-year-prospective-study-of-colonization-with-antimicrobial-resistant-organisms-on-admission-to-a-vietnamese-intensive-care-unit
#20
Duong Bich Thuy, James Campbell, Nguyen Van Minh Hoang, Truong Thi Thuy Trinh, Ha Thi Hai Duong, Nguyen Chi Hieu, Nguyen Hoang Anh Duy, Nguyen Van Hao, Stephen Baker, Guy E Thwaites, Nguyen Van Vinh Chau, C Louise Thwaites
There is a paucity of data regarding initial bacterial colonization on admission to Intensive Care Units (ICUs) in low and middle-income countries (LMICs). Patients admitted to ICUs in LMICs are at high-risk of subsequent infection with antimicrobial-resistant organisms (AROs). We conducted a prospective, observational study at the Hospital for Tropical Diseases in Ho Chi Minh City, Vietnam from November 2014 to January 2016 to assess the colonization and antimicrobial susceptibility of Staphylococcus aureus, Escherichia coli, Klebsiella spp...
2017: PloS One
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