Heteroresistance to Cephalosporins and Penicillins in Acinetobacter baumannii
نویسندگان
چکیده
منابع مشابه
Heteroresistance to cephalosporins and penicillins in Acinetobacter baumannii.
Heteroresistance to antimicrobial agents may affect susceptibility test results and therapeutic success. In this study, we investigated heteroresistance to cephalosporins and penicillins in Acinetobacter baumannii, a major pathogen causing nosocomial infections. Two A. baumannii isolates exhibited heteroresistance to ampicillin-sulbactam, ticarcillin-clavulanic acid, cefepime, and cefpirome, sh...
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Multidrug-resistant Acinetobacter baumannii has emerged as a significant clinical problem worldwide and colistin is being used increasingly as "salvage" therapy. MICs of colistin against A. baumannii indicate its significant activity. However, resistance to colistin in A. baumannii has been reported recently. Clonotypes of 16 clinical A. baumannii isolates and ATCC 19606 were determined by puls...
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The characteristics of carbapenem heteroresistance were studied in 14 apparently carbapenem-susceptible Acinetobacter baumannii isolates. The MICs for carbapenems were determined, and the isolates were genotyped by pulsed-field gel electrophoresis (PFGE) and sequence typing (ST). Population analysis, testing of the stability of the heteroresistant subpopulations, and time-killing assays were pe...
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Resemblances and differences between the penicillins (I) and cephalosporins (II) are considered from a chemical and biochemical point of view.
متن کاملPenicillinase - resistant Penicillins and Cephalosporins
The discovery of penicillinase-resistant penicillins is an important landmark in the history of antibacterial chemotherapy. Methicillin came into clinical use in 1960, and its value in the treatment of penicillin-resistant staphylococcal infection is now well established. The same is true of the isoxazolyl penicillins, oxacillin and cloxacillin, which came on to the scenes about a year later. N...
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ژورنال
عنوان ژورنال: Journal of Clinical Microbiology
سال: 2011
ISSN: 0095-1137
DOI: 10.1128/jcm.05085-11