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Journal of Clinical Microbiology, July 2006, p. 2622-2625, Vol. 44, No. 7
0095-1137/06/$08.00+0 doi:10.1128/JCM.00576-06
Copyright © 2006, American Society for Microbiology. All Rights Reserved.
JMI Laboratories, North Liberty, Iowa,1 Tufts University School of Medicine, Boston, Massachusetts,2 Pfizer Inc., New York, New York3
Received 17 March 2006/ Returned for modification 26 April 2006/ Accepted 11 May 2006
The immediate lack of market-dominating commercial products (Vitek or MicroScan) for susceptibility testing of the new glycolipopeptide, dalbavancin, requires a surrogate marker agent to assist microbiologists in the correct categorization of potentially indicated species (staphylococci and streptococci). Error-rate analyses for 16,749 isolates using vancomycin or teicoplanin results to categorize dalbavancin susceptibilities demonstrated that both glycopeptide agents were highly predictive of dalbavancin-susceptible results (nearly 100%) with only a rare minor error. Vancomycin test results most reliably predict dalbavancin susceptibility until validated commercial reagents become available for direct testing in clinical practice.
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