کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6116176 | 1215949 | 2013 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Update of dalbavancin spectrum and potency in the USA: report from the SENTRY Antimicrobial Surveillance Program (2011)
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موضوعات مرتبط
علوم زیستی و بیوفناوری
ایمنی شناسی و میکروب شناسی
میکروبیولوژی و بیوتکنولوژی کاربردی
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چکیده انگلیسی
Dalbavancin (DAL) is an investigational lipoglycopeptide with a prolonged serum half-life allowing once weekly dosing. DAL potency was assessed in the 2011 SENTRY Antimicrobial Surveillance Program among 1555 isolates sampled from all 9 US Census regions. Monitored Gram-positive cocci included Staphylococcus aureus (SA; 1,036/50.4% MRSA), coagulase-negative staphylococci (CoNS; 115), Enterococcus faecalis (25), E. faecium (31), Streptococcus pyogenes (155), Streptococcus agalactiae (153), and viridans group streptococci (VGS; 40). All susceptibility (S) testing used Clinical and Laboratory Standards Institute reference broth microdilution methods and interpretations. DAL (MIC50/90, 0.06/0.06 μg/mL) was 8- and 16-fold more active than daptomycin (DAP) and vancomycin (VAN), respectively against SA, with MSSA and MRSA having the same MIC90 results. CoNS was slightly more DAL-S (MIC50, â¤0.03μg/mL). The highest staphylococcal DAL MIC was only 0.25 μg/mL. β-Haemolytic streptococci (βHS) and VGS had DAL MIC results ranging from â¤0.03 to 0.25 μg/mL (MIC90, 0.06-0.12 μg/mL), and only enterococci showed elevated DAL MIC results. VanA phenotype-resistant E. faecalis or E. faecium had DAL MIC values at â¥1 μg/mL; VanB strains were DAL-S (MIC, â¤0.25 μg/mL). All cited DAL quantitative values were consistent with earlier surveillance data (2006-2009), without evidence of MIC creep. In conclusion, year 2011 SENTRY Program data for DAL documents sustained potent activity against SA, CoNS, βHS, VGS, and VAN-S enterococci, which averaged 4- to 32-fold greater than VAN, DAP, or linezolid.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Diagnostic Microbiology and Infectious Disease - Volume 75, Issue 3, March 2013, Pages 304-307
Journal: Diagnostic Microbiology and Infectious Disease - Volume 75, Issue 3, March 2013, Pages 304-307
نویسندگان
Ronald N. Jones, Helio S. Sader, Robert K. Flamm,