The Etest glycopeptide resistance detection identified two potential heterogeneous vancomycin-intermediate Staphylococcus aureus (hVISA) isolates from a screen of 288 methicillin-resistant Staphylococcus aureus (MRSA) isolates from patients at a Connecticut Veterans Hospital. However, the two isolates did not meet the criteria for hVISA by the population analysis profile-area under the curve analysis, arguing against routine screening for hVISA in this low prevalence population.
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Fink et al. (2011) studied this question.
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