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Breakthrough Candidemia Due to Multidrug-Resistant Candida glabrata during Prophylaxis with a Low Dose of Micafungin
Author(s) -
Fernando César Bizerra,
Cristina JiménezOrtigosa,
Ana Carolina Remondi Souza,
Giovanni Luís Breda,
Flávio QueirozTelles,
David S. Perlin,
Arnaldo Lopes Colombo
Publication year - 2014
Publication title -
antimicrobial agents and chemotherapy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.07
H-Index - 259
eISSN - 1070-6283
pISSN - 0066-4804
DOI - 10.1128/aac.02189-13
Subject(s) - micafungin , echinocandin , candida glabrata , azole , microbiology and biotechnology , echinocandins , biology , medicine , candida albicans , pharmacology , voriconazole , caspofungin , fluconazole , antifungal
We identified a case of breakthrough candidemia in a 25-year-old patient receiving micafungin prophylaxis (50 mg/day). Five Candida glabrata isolates were obtained from blood cultures and were classified as multidrug-resistant isolates, since all of them exhibited high MICs for echinocandin and azole drugs. A mutation (S663F) in hot spot 1 of the FKS2 gene was found in all five isolates. This mutation yielded a 1,3-β-D-glucan synthase enzyme with highly reduced sensitivities to echinocandin drugs.

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