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Evaluation of apramycin activity against methicillin-resistant, methicillin-sensitive, and vancomycin-intermediate Staphylococcus aureus clinical isolates.

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We evaluated the in vitro activity of apramycin against clinical strains of vancomycin-intermediate and methicillin-resistant and -susceptible Staphylococcus aureus. Apramycin demonstrated an MIC50/MIC90 of 8/16 μg/mL. No strains had an… Click to show full abstract

We evaluated the in vitro activity of apramycin against clinical strains of vancomycin-intermediate and methicillin-resistant and -susceptible Staphylococcus aureus. Apramycin demonstrated an MIC50/MIC90 of 8/16 μg/mL. No strains had an MIC above the epidemiological cutoff value of 32 μg/mL, suggesting apramycin resistance mechanisms are rare in this strain population. The mounting evidence for broad-spectrum in vitro activity of apramycin against S. aureus and other bacterial species suggests that further exploration of apramycin or derivatives as repurposed human therapeutics is warranted.

Keywords: methicillin; staphylococcus aureus; vancomycin intermediate; methicillin resistant; activity

Journal Title: Diagnostic microbiology and infectious disease
Year Published: 2018

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