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Carbapenem-Resistant Superbugs
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Your search returned 37 results
from the time period: last 90 days.
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Clinical infectious diseases : an official publication of the Infectious Diseases Society of America
Abstract: In 2006 the Israeli healthcare system faced an unprecedented outbreak of carbapenem-resistant Enterobacteriaceae, primarily involving KPC-producing Klebsiella pneumoniae clonal complex CC258... Keyword: carbapenem-resistant Enterobacteriaceae. Keyword: infection control. Keyword: outbreak.
Infections (4), more mentions
Digestive diseases and sciences
Eliminating Duodenoscope-Associated Transmission of Carbapenem-Resistant Enterobacteriaceae (CRE): In Search of an Optimal Strategy..
Infection control and hospital epidemiology
Abstract: OBJECTIVE We sought to evaluate the role healthcare providers play in carbapenem-resistant Enterobacteriaceae (CRE) acquisition among hospitalized patients. DESIGN A 1:4 case-control study with incidence density sampling. SETTING Academic healthcare center with regular CRE perirectal screening in high-risk units. PATIENTS We included case patients with ≥1 negative CRE test followed by positive culture with a ...
Clinical infectious diseases : an official publication of the Infectious Diseases Society of America
Colistin Resistance in Carbapenem-Resistant Klebsiella pneumoniae: De Novo or Drug Exposure?.
Antimicrobial agents and chemotherapy
... combination of meropenem-vaborbactam (Vabomere™) is highly active against Gram-negative pathogens, especially KPC-producing, carbapenem-resistant Enterobacteriaceae We evaluated the efficacy of meropenem-vaborbactam against three clinically relevant isolates in a murine ... may have utility in the treatment of complicated urinary tract infections due to KPC-producing, carbapenem-resistant Enterobacteriaceae.
Urology (1)
Urinary Tract Infections (1), Pyelonephritis (1), more mentions
Clinical infectious diseases : an official publication of the Infectious Diseases Society of America
Background: The Clinical and Laboratory Standards Institute (CLSI) revised carbapenem breakpoints for the Enterobacteriaceae in 2010. The number of hospitals that adopted revised CLSI breakpoints and the clinical impact of delayed adoption has not been previously explored. Methods: We performed a cross-sectional, voluntary survey of microbiology laboratories that serve California acute care hospitals and long-term acute care hospitals (LTAC) to determine use of revised CLSI breakpoints. CRE clinical isolates from a single tertiary care hospital from 2013 to 2017 were examined. All isolates with an elevated minimum inhibitory concentration (MIC) (≥ 2 µg/mL) to imipenem or meropenem were tested for the presence of a carbapenemase gene by PCR. Results: We received responses from 128 laboratories that serve 264/393 (67%) of hospitals and LTACs. Current CLSI carbapenem breakpoints for Enterobacteriaceae were used by 92/128 (72%) laboratories. Among laboratories using current breakpoints, time to implementation varied from 0 - 68 months (mean, 41 months, median, 55 months). Application of historical breakpoints to isolates in with a carbapenemase gene detected by PCR resulted in susceptibility rates of 8.9%, 18.6%, and 18.6% to ertapenem, imipenem, and meropenem, respectively. By current breakpoints, <1% of these isolates were susceptible to ertapenem or imipenem and 2.6% to meropenem. Conclusion: Clinicians and epidemiologists should be aware that use of outdated MIC breakpoints for Enterobacteriaceae remains common and can result in reports of false susceptibility to carbapenems and missed identification of carbapenemase producers. This misclassification could have consequences for patient care and infection control efforts to address carbapenemase-producing Enterobacteriaceae.
Infections (1), more mentions
Antimicrobial agents and chemotherapy
Abstract: Although carbapenems are effective for treating serious multidrug-resistant Pseudomonas aeruginosa infections, carbapenem-resistant P. aeruginosa (CRPA) is now being reported worldwide. Ceftolozane/tazobactam (C/T) demonstrates activity against many multidrug-resistant isolates. We evaluated the activity of C/T and compared its activity to that of ceftazidime/avibactam (C/A) using a well-characterized collection of carbapenemase non ...
Infections (1), more mentions
Antimicrobial agents and chemotherapy
Carbapenem-resistant Enterobacteriaceae (CRE) are rapidly spreading and taking a staggering toll on all healthcare systems, largely due to the dissemination of genes coding for potent carbapenemases. An important family of carbapenemases are the Zn(II)-dependent β-lactamases, known as Metallo-β-lactamases (MBLs. Among them, the New-Delhi Metallo-β-lactamase (NDM) has experienced the fastest and widest ...
Starvation (1), Infections (1), more mentions
Infection control and hospital epidemiology
Abstract: BACKGROUND Mortality associated with infections caused by carbapenem-resistant Enterobacteriaceae (CRE) is higher than mortality due to carbapenem-sensitive pathogens ... To examine the association between mortality from bacteremia caused by carbapenem-resistant (CRKP) and carbapenem-sensitive Klebsiella pneumoniae (CSKP) and to assess ... Search terms were related to Klebsiella, carbapenem-resistance, and infection.
Infectious Diseases (2)
Bacteremia (7), Infections (2), more mentions
Antimicrobial agents and chemotherapy
Abstract: Carbapenem-resistant Enterobacteriaceae (CRE) are major healthcare-associated pathogens and responsible for hospital outbreaks worldwide. To prevent a further increase in CRE infections and to improve infection prevention strategies, it is important to summarize the current knowledge about CRE prevention in hospital settings. This systematic review aimed to identify risk factors for CRE acquisition among hospitalized patients.
Infections (4), Communicable Diseases (1), more mentions
The Journal of antimicrobial chemotherapy
Objectives: There is little information about carbapenemase-producing (CP) Citrobacter spp. We studied the molecular epidemiology and microbiological features of CP Citrobacter spp. isolates collected in Spain (2013-15). Methods: In total, 119 isolates suspected of being CP by the EUCAST screening cut-off values were analysed. Carbapenemases and ESBLs were characterized using PCR and sequencing. The genetic relationship among Citrobacter freundii isolates was studied by PFGE. Results: Of the 119 isolates, 63 (52.9%) produced carbapenemases, of which 37 (58.7%) produced VIM-1, 20 (31.7%) produced OXA-48, 12 (19%) produced KPC-2, 2 (3.2%) produced NDM-1 and 1 (1.6%) produced VIM-2; 9 C. freundii isolates co-produced VIM-1 plus OXA-48. Fourteen isolates (22.2%) also carried ESBLs: 8 CTX-M-9 plus SHV-12, 2 CTX-M-9, 2 SHV-12 and 2 CTX-M-15. Fifty-seven isolates (90.5%) were C. freundii, 4 (6.3%) were Citrobacter koseri, 1 (1.6%) was Citrobacter amalonaticus and 1 (1.6%) was Citrobacter braakii. By EUCAST breakpoints, eight (12.7%) of the CP isolates were susceptible to the four carbapenems tested. In the 53 CP C. freundii analysed by PFGE, a total of 44 different band patterns were observed. Four PFGE clusters were identified: cluster 1 included eight isolates co-producing VIM-1 and OXA-48; blaVIM-1 was carried in a class 1 integron (intI-blaVIM-1-aacA4-dfrB1-aadA1-catB2-qacEΔ1/sul1) and blaOXA-48 was carried in a Tn1999.2 transposon. Conclusions: We observed the clonal and polyclonal spread of CP Citrobacter spp. across several Spanish geographical areas. Four species of Citrobacter spp. produced up to five carbapenemase types, including co-production of VIM-1 plus OXA-48. Some CP Citrobacter spp. isolates were susceptible to the four carbapenems tested, a finding with potential clinical implications.
The Lancet. Infectious diseases 
All five representative carbapenem-resistant K pneumoniae strains belonged to the ST11 type, which is the most prevalent carbapenem-resistant K pneumoniae type in China, and originated from the same ... Genomic analyses showed that the emergence of these ST11 carbapenem-resistant hypervirulent K pneumoniae strains was due to the acquisition of ...
Infectious Diseases (2)
Infections (2), Ventilator-Associated Pneumonia (1), Septic Shock (1), more mentions
The Lancet. Infectious diseases 
Emergence of carbapenem-resistant hypervirulent Klebsiella pneumoniae..
The Lancet. Infectious diseases 
Convergence of carbapenem-resistance and hypervirulence in Klebsiella pneumoniae..
The Journal of antimicrobial chemotherapy
Ceftazidime/avibactam use for carbapenem-resistant Klebsiella pneumoniae meningitis: a case report..
Infectious Diseases (2)
Meningitis (2), more mentions
The Journal of antimicrobial chemotherapy
AbstractText: Carbapenem-resistant Pseudomonas aeruginosa (CRPA) infections represent a major therapeutic problem and combination therapy may be the chemotherapeutic option AbstractText: Bioluminescent CRPA was developed through sequential subcultures in subinhibitory concentrations of meropenem from an engineered strain of bioluminescent PA Xen5. Then CRPA was injected intraperitoneally to establish an intraperitoneal murine infection model.
Infections (5), more mentions
Antimicrobial agents and chemotherapy
... vaborbactam at 8 μg/ml results in meropenem MICs of ≤2 μg/ml in the most resistant engineered strains containing multiple mutations. Vaborbactam is a highly active beta-lactamase inhibitor that restores the activity of meropenem and other beta-lactam antibiotics in beta-lactamase-producing bacteria, particularly KPC-producing carbapenem-resistant Enterobacteriaceae Keyword: KPC. Keyword: major porins OmpK35 and OmpK36.
Infectious Diseases (2), more mentions
The Journal of antimicrobial chemotherapy
Revisiting the contribution of gene duplication of blaOXA-23 in carbapenem-resistant Acinetobacter baumannii..
Antimicrobial agents and chemotherapy
Transmissible colistin resistance gene, mcr-1 has breached the one of the last line of defense for treatment of infections caused by carbapenem-resistant Enterobacteriaceae…..
Infections (1), more mentions
Antimicrobial agents and chemotherapy
Abstract: Carbapenem-resistant Enterobacteriaceae are an urgent threat to global human health. These organisms produce β-lactamases with carbapenemase activity, such as the metallo-β-lactamase NDM-1, which is notable due to its association with mobile genetic elements and the lack of a clinically useful inhibitor. Here we examined the ability of copper to inhibit the activity of NDM ...
Infectious Diseases (1), Urology (1)
Urinary Tract Infections (1), more mentions
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