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https://www.readbyqxmd.com/read/28108681/re-emergence-of-methicillin-susceptibility-in-a-resistant-lineage-of-staphylococcus-aureus
#1
Alice Ledda, James R Price, Kevin Cole, Martin J Llewelyn, Angela M Kearns, Derrick W Crook, John Paul, Xavier Didelot
OBJECTIVES: MRSA is a leading cause of hospital-associated infection. Acquired resistance is encoded by the mecA gene or its homologue mecC, but little is known about the evolutionary dynamics involved in gain and loss of resistance. The objective of this study was to obtain an expanded understanding of Staphylococcus aureus methicillin resistance microevolution in vivo, by focusing on a single lineage. METHODS: We compared the whole-genome sequences of 231 isolates from a single epidemic lineage [clonal complex 30 (CC30) and spa-type t018] of S...
January 20, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28107984/development-and-validation-of-a-fast-micro-extraction-by-packed-sorbent-uhplc-pda-method-for-the-simultaneous-determination-of-linezolid-and-ciprofloxacin-in-human-plasma-from-patients-with-hospital-acquired-pneumonia
#2
Vincenzo Ferrone, Maura Carlucci, Roberto Cotellese, Paolo Raimondi, Annadomenica Cichella, Lorenzo Di Marco, Giuseppe Carlucci
An ultra high-performance liquid chromatographic (UHPLC) method with PDA detection was developed and validated for the simultaneous quantification of linezolid and ciprofloxacin in human plasma and applied in hospital acquired pneumonia patients (HAP). The method uses a semi-automated microextraction by packed sorbent for sample preparation. All parameters in the extraction step (pH, sample volume, sample dilution and number of aspiration - ejection cycles) and in the desorption step (percentage of acetonitrile in the solvent of elution and number of aspirations of elution solvent through the device) were statistically significant when the recovery was used as response...
March 1, 2017: Talanta
https://www.readbyqxmd.com/read/28107882/a-real-time-reporting-system-of-causes-of-death-or-reasons-for-euthanasia-a-model-for-monitoring-mortality-in-domesticated-cats-in-taiwan
#3
Wei-Hsiang Huang, Albert Taiching Liao, Pei-Yi Chu, I-Feng Yen, Chen-Hsuan Liu
A novel, real-time mortality recording system was designed to collect mortality data in companion animals from veterinary hospitals in Taiwan. This retrospective study aims to introduce the system, and to utilize the data collected for further investigation of the lifespan and mortality of the domesticated cat population stratified by demographic variables. Our data revealed that 1325 domesticated cats were acquired between 2012 and 2014. The median age of the study population was 8.0 years (IQR 3.0-13.0; range 0...
February 1, 2017: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/28105364/disseminated-penicillium-marneffei-infection-recurrence-in-a-non-acquired-immune-deficiency-syndrome-patient-a-case-report
#4
Zhixue Zhang, Fangxu Tao, Yining Li, Yudong Xiao, Zhishu Zhang, Jun Liu
Penicillium marneffei is a rare deep tissue fungal infection causing an endemic in Southeast Asia. This infection causes penicilliosis disease and is more common in patients who are immunocompromised. To date, no cases of P. marneffei infection relapse following treatment have been reported. A 36-year-old patient attended our hospital as a result of intermittent fever, cough, shortness of breath and multiple soft lesions located on the face, arms, neck and trunk. The medical radiological examination of the lung revealed multiple patchy exudative shadows, thick-walled hollow inner part of the visible lesions, bilateral pleural and pericardial effusion...
December 2016: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28104287/enhanced-terminal-room-disinfection-and-acquisition-and-infection-caused-by-multidrug-resistant-organisms-and-clostridium-difficile-the-benefits-of-enhanced-terminal-room-disinfection-study-a-cluster-randomised-multicentre-crossover-study
#5
Deverick J Anderson, Luke F Chen, David J Weber, Rebekah W Moehring, Sarah S Lewis, Patricia F Triplett, Michael Blocker, Paul Becherer, J Conrad Schwab, Lauren P Knelson, Yuliya Lokhnygina, William A Rutala, Hajime Kanamori, Maria F Gergen, Daniel J Sexton
BACKGROUND: Patients admitted to hospital can acquire multidrug-resistant organisms and Clostridium difficile from inadequately disinfected environmental surfaces. We determined the effect of three enhanced strategies for terminal room disinfection (disinfection of a room between occupying patients) on acquisition and infection due to meticillin-resistant Staphylococcus aureus, vancomycin-resistant enterococci, C difficile, and multidrug-resistant Acinetobacter. METHODS: We did a pragmatic, cluster-randomised, crossover trial at nine hospitals in the southeastern USA...
January 16, 2017: Lancet
https://www.readbyqxmd.com/read/28104185/causes-and-outcomes-of-sepsis-in-southeast-asia-a-multinational-multicentre-cross-sectional-study
#6
(no author information available yet)
BACKGROUND: Improved understanding of pathogens that cause sepsis would aid management and antimicrobial selection. In this study, we aimed to identify the causative pathogens of sepsis in southeast Asia. METHODS: In this multinational multicentre cross-sectional study of community-acquired sepsis and severe sepsis, we prospectively recruited children (age ≥30 days and <18 years) and adults (age ≥18 years) at 13 public hospitals in Indonesia (n=3), Thailand (n=4), and Vietnam (n=6)...
February 2017: Lancet Global Health
https://www.readbyqxmd.com/read/28100179/exploring-surface-cleaning-strategies-in-hospital-to-prevent-contact-transmission-of-methicillin-resistant-staphylococcus-aureus
#7
Hao Lei, Rachael M Jones, Yuguo Li
BACKGROUND: Cleaning of environmental surfaces in hospitals is important for the control of methicillin-resistant Staphylococcus aureus (MRSA) and other hospital-acquired infections transmitted by the contact route. Guidance regarding the best approaches for cleaning, however, is limited. METHODS: In this study, a mathematical model based on ordinary differential equations was constructed to study MRSA concentration dynamics on high-touch and low-touch surfaces, and on the hands and noses of two patients (in two hospitals rooms) and a health care worker in a hypothetical hospital environment...
January 18, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28099825/transmission-of-extensively-drug-resistant-tuberculosis-in-south-africa
#8
N Sarita Shah, Sara C Auld, James C M Brust, Barun Mathema, Nazir Ismail, Pravi Moodley, Koleka Mlisana, Salim Allana, Angela Campbell, Thuli Mthiyane, Natashia Morris, Primrose Mpangase, Hermina van der Meulen, Shaheed V Omar, Tyler S Brown, Apurva Narechania, Elena Shaskina, Thandi Kapwata, Barry Kreiswirth, Neel R Gandhi
Background Drug-resistant tuberculosis threatens recent gains in the treatment of tuberculosis and human immunodeficiency virus (HIV) infection worldwide. A widespread epidemic of extensively drug-resistant (XDR) tuberculosis is occurring in South Africa, where cases have increased substantially since 2002. The factors driving this rapid increase have not been fully elucidated, but such knowledge is needed to guide public health interventions. Methods We conducted a prospective study involving 404 participants in KwaZulu-Natal Province, South Africa, with a diagnosis of XDR tuberculosis between 2011 and 2014...
19, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28098550/determination-of-elizabethkingia-diversity-by-maldi-tof-mass-spectrometry-and-whole-genome-sequencing
#9
Helle Brander Eriksen, Heidi Gumpert, Cecilie Haase Faurholt, Henrik Westh
In a hospital-acquired infection with multidrug-resistant Elizabethkingia, matrix-assisted laser desorption/ionization time-of-flight mass spectrometry and 16S rRNA gene analysis identified the pathogen as Elizabethkingia miricola. Whole-genome sequencing, genus-level core genome analysis, and in silico DNA-DNA hybridization of 35 Elizabethkingia strains indicated that the species taxonomy should be further explored.
February 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28096978/carriage-of-antibiotic-resistant-enterobacteriaceae-in-hospitalised-children-in-tertiary-hospitals-in-harare-zimbabwe
#10
Marcelyn T Magwenzi, Muchaneta Gudza-Mugabe, Hilda A Mujuru, Mutsa Dangarembizi-Bwakura, Valerie Robertson, Alexander M Aiken
BACKGROUND: Extended-spectrum β-lactamase-producing and gentamicin resistant Enterobacteriaceae are increasingly recognised as a major cause of infection in low-income countries. We assessed the prevalence of gastrointestinal carriage of these bacteria in hospitalised children in Harare, Zimbabwe. METHODS: We conducted a cohort study in paediatric inpatients at two tertiary-referral hospitals between May and July 2015. Rectal swabs and faecal samples were collected within 24 h of admission and further follow-up samples were collected on alternate days during hospitalization...
2017: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/28096455/multicenter-prospective-study-on-device-associated-infection-rates-and-bacterial-resistance-in-intensive-care-units-of-venezuela-international-nosocomial-infection-control-consortium-inicc-findings
#11
Gabriel D Empaire, Maria E Guzman Siritt, Victor D Rosenthal, Fernando Pérez, Yvis Ruiz, Claudia Díaz, Gabriela Di Silvestre, Evelyn Salinas, Nelva Orozco
BACKGROUND: Device-associated healthcare-acquired infections (DA-HAI) pose a threat to patient safety in the intensive care unit (ICU). METHODS: A DA-HAI surveillance study was conducted by the International Nosocomial Infection Control Consortium (INICC) in two adult medical/surgical ICUs at two hospitals in Caracas, Venezuela, in different periods from March 2008 to April 2015, using the US Centers for Disease Control and Prevention's National Healthcare Safety Network (CDC/NHSN) definitions and criteria, and INICC methods...
January 2017: International Health
https://www.readbyqxmd.com/read/28094205/legionnaires-disease-at-a-medical-center-in-southern-taiwan
#12
Tzu-Lun Hung, Ming-Chi Li, Li-Rong Wang, Ching-Chuan Liu, Chia-Wen Li, Po-Lin Chen, Ling-Shan Syue, Nan-Yao Lee, Wen-Chien Ko
BACKGROUND/PURPOSE: Legionella pneumophila had been recognized as a pathogen for both healthcare-associated and community-acquired pneumonia. We aimed to evaluate clinical features and outcomes of patients with Legionnaires' disease at a tertiary medical center in southern Taiwan. METHODS: From January 2005 to December 2013, a retrospective study of adult cases of Legionnaires' disease was conducted in a 1200-bed tertiary hospital. Their medical records were reviewed for further evaluation and analysis...
December 18, 2016: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
https://www.readbyqxmd.com/read/28089736/antibacterial-activity-of-limonium-brasiliense-baicuru-against-multidrug-resistant-bacteria-using-a-statistical-mixture-design
#13
Andressa Blainski, Barbara Gionco, Admilton G Oliveira, Galdino Andrade, Ieda S Scarminio, Denise B Silva, Norberto P Lopes, João C P Mello
ETHNOPHARMACOLOGICAL RELEVANCE: Limonium brasiliense (Boiss.) Kuntze (Plumbaginaceae) is commonly known as "baicuru" or "guaicuru" and preparations of its dried rhizomes have been populary used in the treatment of premenstrual syndrome and menstrual disorder, and as an antiseptic in genito-urinary infections. This study evaluated the potential antibacterial activity of rhizome extracts against multidrug-resistant bacterial strains using statistical mixture design. MATERIALS AND METHODS: The statistical design of four components (water, methanol, acetone and ethanol) produced 15 different extracts and also a confirmatory experiment, which was performed using water:acetone (3:7, v/v)...
January 13, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28089674/assessment-of-ventilator-associated-events-using-the-geometric-distribution
#14
Ragheb Assaly, William R Barnett, Fadi Safi, Sadik Khuder, John Macko
Hospital-acquired rare events, such as nosocomial infections and other low-occurring incidents, in the clinical environment are difficult to monitor using traditional quality indicators. Using the Centers for Disease Control and Prevention definition of ventilator-associated events, we demonstrate an alternative method for assessment of rare events.
January 13, 2017: American Journal of Infection Control
https://www.readbyqxmd.com/read/28089405/use-of-essential-oils-following-traumatic-burn-injury-a-case-study
#15
Kathleen Jopke, Heather Sanders, Rosemary White-Traut
Hospital admissions related to burn injury reach 40,000 annually. Patients who experience extensive burns require longer hospital stays and are at increased risk for infection and hospital acquired conditions. This comparative case study is a two patient matched case control design that follows the hospital course of two children who experienced burn injuries. For one of these patients, with the consent of the child's parents, the grandmother treated her granddaughter with essential oils. Essential oils have the potential to inhibit microbial growth, support treatment of wounds, and facilitate healing...
January 13, 2017: Journal of Pediatric Nursing
https://www.readbyqxmd.com/read/28089143/long-term-mortality-following-pseudomonas-aeruginosa-bloodstream-infection
#16
K L McCarthy, D L Paterson
BACKGROUND: Pseudomonas aeruginosa bloodstream infections (BSI) are associated with substantial short-term mortality. There is little data on long-term mortality associated with this BSI. AIM: To describe mortality rates up to one year post infection and the significant factors associated with death. METHODS: Positive blood cultures for P. aeruginosa were identified retrospectively from January 2008 to January 2011 at seven tertiary care hospitals...
November 30, 2016: Journal of Hospital Infection
https://www.readbyqxmd.com/read/28089138/bloodstream-infections-in-children-caused-by-carbapenem-resistant-versus-carbapenem-susceptible-gram-negative-microorganisms-risk-factors-and-outcome
#17
Yasemin Ozsurekci, Kubra Aykac, Ali Bulent Cengiz, Sevgen Tanır Basaranoglu, Banu Sancak, Sevilay Karahan, Ates Kara, Mehmet Ceyhan
Carbapenems are often considered the last resort agents reserved for treatment of infections due to highly antimicrobial resistant organisms such as A. baumannii and P. aeruginosa. However, carbapenem-resistant Gram-negative (CRGN) pathogens have become much more prevalent in the last decade. The objective of this study was to determine risk factors for and outcome of bacteremia caused by Gram-negative microorganisms in a pediatric tertiary-care hospital. Among 97 patients with hospital-acquired Gram-negative bacteremia, 66 patients with carbapenem-susceptible Gram-negative pathogens (CSGN) were compared with the remaining 31 with CRGN isolates...
January 3, 2017: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/28088183/incidence-aetiology-and-outcome-of-community-acquired-acute-kidney-injury-in-medical-admissions-in-malawi
#18
Rhys D R Evans, Ulla Hemmilä, Alison Craik, Mwayi Mtekateka, Fergus Hamilton, Zuze Kawale, Christopher J Kirwan, Hamish Dobbie, Gavin Dreyer
BACKGROUND: Epidemiological data on Acute Kidney Injury (AKI) from low-income countries is sparse. The aim of this study was to establish the incidence, severity, aetiology, and outcomes of community-acquired AKI in Malawi. METHODS: We conducted a prospective observational study of general medical admissions to a tertiary hospital in Blantyre between 27(th) April and 17(th) July 2015. All patients were screened on admission with a serum creatinine; those with creatinine above laboratory reference range were managed by the nephrology team...
January 14, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28086793/methicillin-resistance-and-virulence-genes-in-invasive-and-nasal-staphylococcus-epidermidis-isolates-from-neonates
#19
Vivian Carolina Salgueiro, Natalia Lopes Pontes Iorio, Marcelle Cristina Ferreira, Raiane Cardoso Chamon, Kátia Regina Netto Dos Santos
BACKGROUND: Staphylococcus epidermidis is an opportunistic pathogen involved in hospital-acquired infections, particularly in those related to medical devices. This study characterized 50 genetically unrelated S. epidermidis isolates from bloodstream infections (BSIs, n = 31) and nares (n = 19) of neonates in relation to staphylococcal chromosomal cassette mec (SCCmec) type, biofilm production and associated genes, and the arginine catabolic mobile elements (ACME), in order to detect virulence factors that could discriminate a potential invasiveness isolate or predict an increasing pathogenicity...
January 13, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28079629/duration-of-pneumonia-therapy-and-the-role-of-biomarkers
#20
Katerina Kaziani, Adamantia Sotiriou, George Dimopoulos
PURPOSE OF REVIEW: Increasing antimicrobial resistance is a worldwide phenomenon that is threatening public health. Lower respiratory infections are one of the leading causes of morbidity that contribute to antibiotic consumption and thus the emergence of multidrug-resistant microbial strains. The goal of shortening antibiotic regimens' duration in common bacterial infections has been prioritized by antimicrobial stewardship programs as an action against this problem. RECENT FINDINGS: Data coming from randomized controlled trials, meta-analyses, and systematic reviews support the shortening of antimicrobial regimens in community-acquired, hospital-acquired, and ventilator-associated pneumonia...
January 12, 2017: Current Opinion in Infectious Diseases
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