American Society for Microbiology, Antimicrobial Agents and Chemotherapy, 2(61), 2017
DOI: 10.1128/aac.01542-16
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ABSTRACT We assessed the in vitro susceptibility of five echinocandin-susceptible Candida glabrata isolates after exposure to micafungin. The direct exposure to plates at different micafungin concentrations resulted in the inhibition of growth at 0.062 μg/ml. The progressive exposure was performed on plates using 0.031 μg/ml of micafungin and sequential propagation on plates containing the next 2-fold concentration; the MICs of micafungin and anidulafungin increased sequentially, and all the isolates became echinocandin resistant, showing fks2 mutations.