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https://www.readbyqxmd.com/read/29792971/impact-of-active-surveillance-and-infection-control-measures-on-carbapenem-resistant-gram-negative-bacterial-colonization-and-infections-in-intensive-care
#1
T Karampatakis, K Tsergouli, E Iosifidis, C Antachopoulos, A Karapanagiotou, A Karyoti, N Gritsi-Gerogianni, A Tsakris, E Roilides
BACKGROUND: Carbapenem-resistant Gram-negative bacteria (CRGNB) infections constitute a global threat for critically ill patients and the outcome of their hospitalization. Early identification of CRGNB through rectal surveillance cultures and routine infection control measures including contact precautions, use of appropriate disinfectants, staff education on cleaning, and hand hygiene may reduce the dissemination of CRGNB. AIM: To assess the impact of enhanced infection control measures on CRGNB infections in a nine-bed polyvalent intensive care unit in a tertiary level hospital in an endemic area...
May 21, 2018: Journal of Hospital Infection
https://www.readbyqxmd.com/read/29791557/new-and-repurposed-drugs-to-treat-multidrug-and-extensively-drug-resistant-tuberculosis
#2
Denise Rossato Silva, Margareth Dalcolmo, Simon Tiberi, Marcos Abdo Arbex, Marcela Munoz-Torrico, Raquel Duarte, Lia D'Ambrosio, Dina Visca, Adrian Rendon, Mina Gaga, Alimuddin Zumla, Giovanni Battista Migliori
Multidrug-resistant and extensively drug-resistant tuberculosis (MDR-TB and XDR-TB, respectively) continue to represent a challenge for clinicians and public health authorities. Unfortunately, although there have been encouraging reports of higher success rates, the overall rate of favorable outcomes of M/XDR-TB treatment is only 54%, or much lower when the spectrum of drug resistance is beyond that of XDR-TB. Treating M/XDR-TB continues to be a difficult task, because of the high incidence of adverse events, the long duration of treatment, the high cost of the regimens used, and the drain on health care resources...
April 2018: Jornal Brasileiro de Pneumologia: Publicaça̋o Oficial da Sociedade Brasileira de Pneumologia e Tisilogia
https://www.readbyqxmd.com/read/29789189/antimicrobial-susceptibility-of-enterobacteriaceae-and-pseudomonas-aeruginosa-isolates-from-united-states-medical-centers-stratified-by-infection-type-results-from-the-international-network-for-optimal-resistance-monitoring-inform-surveillance-program-2015
#3
Helio S Sader, Mariana Castanheira, Leonard R Duncan, Robert K Flamm
A total of 18,656 Enterobacteriaceae and 4,175 Pseudomonas aeruginosa were consecutively collected from 85 US hospitals and tested for susceptibility by broth microdilution methods in a central monitoring laboratory (JMI Laboratories). The antimicrobial susceptibility and frequency of key resistance phenotypes were assessed and stratified by infection type as follows: bloodstream (BSI; 3,434 isolates; 15.0%), pneumonia (6,439; 28.2%), skin and skin structure (SSSI; 4,134; 18.1%), intra-abdominal (IAI; 951; 4...
April 26, 2018: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/29787365/kpc-2-producing-st101-klebsiella-pneumoniae-from-bloodstream-infection-in-india
#4
Chaitra Shankar, Baby Abirami Shankar, Abi Manesh, Balaji Veeraraghavan
This study characterizes KPC-2 producing Klebsiella pneumoniae belonging to ST101. Whole genome sequencing using the Ion Torrent PGM platform with 400 bp chemistry was performed. blaKPC-2 was found on an IncFIIK plasmid associated with ISKpn6 and ISKpn7 without Tn4401. This is the first report of KPC-2 K. pneumoniae from bacteremia in India. The isolate also coded for other resistance genes such as aadA1, aadA2, armA, aac(3)-Ild, aac(6')-Ild for aminoglycoside; blaSHV-11, blaTEM-1B, blaOXA-9, for β-lactams and aac(6')-Ild, oqxA, oqxB, qnrB1 for fluoroquinolones...
May 22, 2018: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/29784853/carbapenem-non-susceptible-haemophilus-influenzae-with-penicillin-binding-protein-3-containing-amino-acid-insertion
#5
Kazuki Kitaoka, Kouji Kimura, Hiromitsu Kitanaka, Hirotsugu Banno, Wanchun Jin, Jun-Ichi Wachino, Yoshichika Arakawa
Prevalence of β-lactamase-negative ampicillin-resistant Haemophilus influenzae (BLNAR) has become a clinical concern. In BLNAR, amino acid substitutions in penicillin-binding protein 3 (PBP3) are relevant to the β-lactam resistance. Carbapenem-non-susceptible H. influenzae isolates have been rarely reported. Through antimicrobial susceptibility testing and nucleotide sequence analysis of ftsI , encoding PBP3, and utilizing a collection of H. influenzae clinical isolates in our laboratory, we obtained a carbapenem-non-susceptible clinical isolate (NUBL1772) that possessed an altered PBP3 containing V525_N526insM...
May 21, 2018: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29783881/lemierre-s-syndrome-a-case-study-with-a-short-review-of-literature
#6
Ken De Smet, Paul-Emile Claus, Gudrun Alliet, An Simpelaere, Geert Desmet
Objective and Importance Lemierre's syndrome (LS) is a rare condition that typically starts with a bacterial oropharyngeal infection complicated by a thrombophlebitis of the internal jugular vein and septic emboli to the lungs or other organs. The most common organism isolated is Fusobacterium necrophorum, although other causative organisms are isolated in rare cases. Case presentation We discuss a case of LS in a 44-year-old, previously healthy man presenting with an oropharyngeal infection. F. necrophorum was isolated from blood cultures and Computed tomography of the chest demonstrated septic emboli in the lungs...
May 21, 2018: Acta Clinica Belgica
https://www.readbyqxmd.com/read/29783023/extended-spectrum-beta-lactamase-producing-enterobacteriaceae-infections-in-haematopoietic-stem-cell-transplant-recipients-epidemiology-and-molecular-characterization
#7
Molka Kharrat, Yosra Chebbi, Farah Ben Tanfous, Amel Lakhal, Saloua Ladeb, Tarek Ben Othmen, Wafa Achour
BACKGROUND: Extended spectrum β-lactamase producing Enterobacteriaceae (ESBL-E) are feared because they generate therapeutic difficulties and have high potential for dissemination. The purpose of our study was to investigate the epidemiology of these infections in hematopoietic stem cell transplant (HSCT) recipients and to determine the genes encoding ESBL. MATERIAL/METHODS: Our retrospective study concerned adult patients hospitalized at the National Bone Marrow Transplant Center and infected with ESBL-E post HSCT between january 2006 and december 2016...
May 18, 2018: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/29782216/carbapenemase-producing-carbapenem-resistant-enterobacteriaceae-from-bangkok-thailand-and-their-detection-by-the-carba-np-and-modified-carbapenem-inactivation-method-tests
#8
Warawut Laolerd, Yukihiro Akeda, Likit Preeyanon, Panan Ratthawongjirakul, Pitak Santanirand
AIM: The purpose of the study was to determine the epidemiology of carbapenemase genes among carbapenem-resistant Enterobacteriaceae and evaluate the Carba NP and modified carbapenem inactivation method (mCIM) tests in their detection. MATERIALS AND METHODS: A total of 287 nonduplicated Enterobacteriaceae isolates, which were at least resistant to one of the carbapenems, were identified and detected for carbapenemase genes by multiplex PCR covering blaKPC , blaNDM , blaVIM , blaIMP , and blaOXA-48-like ...
May 21, 2018: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/29781595/-results-of-the-implementation-of-an-antimicrobial-stewardship-program-in-the-gerencia-de-atenci%C3%A3-n-integrada-of-alcazar-de-san-juan-castilla-la-mancha
#9
M A Asencio Egea, O Herráez Carrera, M Huertas Vaquero, H D Patiño Ortega, M Franco Huerta, P Alcázar Carmona, M C Conde García, C Muñoz-Cuevas, C Román Ortiz, J Gaitán Pitera, R Carranza González, J R Barberá
OBJECTIVE: Our aim was to evaluate the efficiency of an ASP after its implementation in 2016 in a Spanish hospital quality system. METHODS: Efficiency of the ASP was measured by process and outcome indicators at the level of the patient's quality of life, antimicrobial consumption and percentage of resistance to them during the 2016-2017 period. In 2017, the failures mode and effects analysis (FMEA) methodology was applied. An annual satisfaction survey was conducted...
May 18, 2018: Revista Española de Quimioterapia: Publicación Oficial de la Sociedad Española de Quimioterapia
https://www.readbyqxmd.com/read/29776363/rapid-detection-of-carbapenemase-activity-of-enterobacteriaceae-isolated-from-positive-blood-cultures-by-maldi-tof-ms
#10
Jiajia Yu, Jingxian Liu, Yuanrui Li, Jing Yu, Weinan Zhu, Ying Liu, Lisong Shen
BACKGROUND: Matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) has been proved to be a useful tool for identification of pathogens directly isolated from blood cultures in clinical microbiology laboratories. β-Lactam antibiotics are commonly used for treatment of bloodstream infections caused by Enterobacteriaceae strains, and carbapenem is the superlative class of β-lactam antibiotics. Since the carbapenem resistance rate of Enterobacteriaceae strains raised year by year, efficient detection of carbapenemase activity and timely delivery of carbapenem susceptibility reports of Enterobacteriaceae strains isolated from blood cultures is important for clinicians...
May 18, 2018: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/29770082/first-reported-case-of-multidrug-resistant-candida-auris-in-canada
#11
I S Schwartz, G W Hammond
Candida auris is a fungal pathogen that has recently emerged as a global threat to public health. It was first described in Japan in 2009 and has since been reported in 17 countries on five continents. This case report describes the first reported case of multidrug-resistant C. auris in Canada. In May 2017, a 64-year-old individual was evaluated for chronic otitis externa. Past medical history included a recent hospitalization in India for elective oral surgery that was complicated by an odontogenic brain abscess...
July 6, 2017: Canada Communicable Disease Report, Relevé des Maladies Transmissibles Au Canada
https://www.readbyqxmd.com/read/29769274/a-comparative-evaluation-of-four-phenotypic-methods-for-detection-of-class-a-and-b-carbapenemase-producing-enterobacteriaceae-in-china
#12
Menglan Zhou, Danchen Wang, Timothy Kudinha, Qiwen Yang, Shuying Yu, Ying-Chun Xu
Objectives: To evaluate the performance of four phenotypic methods in the detection of carbapenemase-producing Enterobacteriaceae (CPE) in China. Methods: We evaluated the performance of four carbapenemase detection methods, the modified Hodge test (MHT), Carba NP test, meropenem hydrolysis assay (MHA) with 1 and 2-hour incubation, and modified carbapenem inactivation method (mCIM) with meropenem, imipenem, and ertapenem, on 342 carbapenem-resistant Enterobacteriaceae (CRE) in China. Polymerase chain reaction was used as the gold standard...
May 16, 2018: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/29764953/fighting-antibiotic-resistant-klebsiella-pneumoniae-with-sweet-immune-targets
#13
Roberto Adamo, Immaculada Margarit
Antibiotics and vaccines have greatly impacted human health in the last century by dramatically reducing the morbidity and mortality associated with infectious diseases. The recent challenge posed by the emergence of multidrug-resistant bacteria could possibly be addressed by novel immune prophylactic and therapeutic approaches. Among the newly threatening pathogens, Klebsiella pneumoniae is particularly worrisome in the nosocomial setting, and its surface polysaccharides are regarded as promising antigen candidates...
May 15, 2018: MBio
https://www.readbyqxmd.com/read/29763630/clinical-and-molecular-epidemiologic-characteristics-of-carbapenem-resistant-klebsiella-pneumoniae-infection-colonization-among-neonates-in-china
#14
Dandan Yin, Lei Zhang, Aimin Wang, Leiyan He, Yun Cao, Fupin Hu, Chuanqing Wang
BACKGROUND: The spread of carbapenem-resistant Klebsiella pneumoniae (CR-KPN) is a major concern, but data on CR-KPN infection/colonization in paediatric populations are limited. AIM: This study aimed to analyze epidemiologic and clinical characteristics, therapeutic options of CR-KPN infections in neonates in China. METHODS: A retrospective study was performed at the Children's Hospital of Fudan University, including 88 neonates with CR-KPN admitted between November 2015 and October 2016...
May 12, 2018: Journal of Hospital Infection
https://www.readbyqxmd.com/read/29760959/molecular-epidemiology-of-multidrug-resistant-bacteria-isolated-from-libyan-and-syrian-patients-with-war-injuries-in-two-bundeswehr-hospitals-in-germany
#15
Hagen Frickmann, Thomas Köller, Ralf Matthias Hagen, Klaus-Peter Ebert, Martin Müller, Werner Wenzel, Renate Gatzer, Ulrich Schotte, Alfred Binder, Romy Skusa, Philipp Warnke, Andreas Podbielski, Christian Rückert, Bernd Kreikemeyer
Introduction: We assessed the molecular epidemiology of multidrug-resistant bacteria colonizing or infecting war-injured patients from Libya and Syria who were treated at the Bundeswehr hospitals Hamburg and Westerstede, Germany. Methods: Enterobacteriaceae and Gram-negative rod-shaped nonfermentative bacteria with resistance against third-generation methoxyimino cephalosporins or carbapenems as well as methicillin-resistant Staphylococcus aureus (MRSA) from war-injured patients from Libya and Syria were assessed by molecular typing, i...
April 2018: European Journal of Microbiology & Immunology
https://www.readbyqxmd.com/read/29760690/two-new-lytic-bacteriophages-of-the-myoviridae-family-against-carbapenem-resistant-acinetobacter-baumannii
#16
Weilong Zhou, Yu Feng, Zhiyong Zong
Two lytic bacteriophages, WCHABP1 and WCHABP12, were recovered from hospital sewage and were able to infect 9 and 12 out of 18 carbapenem-resistant Acinetobacter baumannii clinical strains, which belonged to different clones. Electron microscopy scan showed that both bacteriophages had the similar morphology as those of the Myoviridae family. Whole genomic sequencing revealed 45.4- or 45.8-kb genome with a 37.6% GC content for WCHABP1 and WCHABP12, both of which showed significant DNA sequence similarity with bacteriophages of the Ap22virus genus within the Myoviridae family...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29760134/oxa-72-mediated-carbapenem-resistance-in-sequence-type-1-multidrug-colistin-resistant-acinetobacter-baumannii-associated-with-urinary-tract-infection-in-a-dog-from-serbia
#17
Dusan Misic, Jelena Asanin, Joachim Spergser, Michael Szostak, Igor Loncaric
Multidrug resistant Acinetobacter (A.) baumannii is primarily important as a causative agent of difficult to treat nosocomial infections in humans (1).….
May 14, 2018: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29760124/-in-vitro-activity-of-ceftazidime-avibactam-against-clinical-isolates-of-enterobacteriaceae-and-pseudomonas-aeruginosa-collected-in-asia-pacific-countries-results-from-the-inform-global-surveillance-program-2012-2015
#18
James A Karlowsky, Krystyna M Kazmierczak, Samuel K Bouchillon, Boudewijn L M de Jonge, Gregory G Stone, Daniel F Sahm
The in vitro activities of ceftazidime-avibactam and comparators were determined for 9,149 isolates of Enterobacteriaceae and 2,038 isolates of Pseudomonas aeruginosa collected by 42 medical centers in nine countries in the Asia-Pacific region from 2012 to 2015 as part of the International Network For Optimal Resistance Monitoring (INFORM) global surveillance program. Antimicrobial susceptibility testing was conducted by CLSI broth microdilution and isolate subset analysis performed based on resistant phenotypes and β-lactamase content...
May 14, 2018: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29758354/isaba1-and-tn6168-acquisition-by-natural-transformation-leads-to-third-generation-cephalosporins-resistance-in-acinetobacter-baumannii
#19
Sara Domingues, Natasha Rosário, Hadhemi Ben Cheikh, Gabriela Jorge Da Silva
Acinetobacter baumannii has intrinsic beta-lactamase genes, namely ampC and blaOXA-51 -like, which are only strongly expressed when the ISAba1 insertion sequence is upstream the 5' end of the genes. A second ampC gene has also been identified in some clinical A. baumannii strains. The increased expression of these genes leads to resistance to beta-lactams, including third-generation cephalosporins and/or carbapenems. The aim of this work was to assess the involvement of natural transformation in the transfer of chromosomal ampC-associated mobile elements, and related changes in the resistance profile of recipient cells...
May 11, 2018: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/29758020/defining-icr-mo-an-intrinsic-colistin-resistance-determinant-from-moraxella-osloensis
#20
Wenhui Wei, Swaminath Srinivas, Jingxia Lin, Zichen Tang, Shihua Wang, Saif Ullah, Vishnu Goutham Kota, Youjun Feng
Polymyxin is the last line of defense against severe infections caused by carbapenem-resistant gram-negative pathogens. The emergence of transferable MCR-1/2 polymyxin resistance greatly challenges the renewed interest in colistin (polymyxin E) for clinical treatments. Recent studies have suggested that Moraxella species are a putative reservoir for MCR-1/2 genetic determinants. Here, we report the functional definition of ICR-Mo from M. osloensis, a chromosomally encoded determinant of colistin resistance, in close relation to current MCR-1/2 family...
May 14, 2018: PLoS Genetics
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