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In vitro antifungal susceptibility of Scopulariopsis brevicaulis isolates.

Medical mycology (2014-07-23)
Magdalena Skóra, Anna B Macura, Małgorzata Bulanda
ABSTRACT

In humans, Scopulariopsis is mainly associated with onychomycoses, rarely with cutaneous infections or with invasive mycoses. However, during the last two decades, deep infections caused by members of this genus have been increasing. Scopulariopsis brevicaulis is the most common species described as an etiologic agent of human disease. Previous antifungal susceptibility studies indicate that this species is resistant in vitro to the broad-spectrum antifungal agents that are available today. Here, we describe the antifungal activity of amphotericin B, terbinafine, ciclopirox, itraconazole, ketoconazole, and voriconazole against 40 S. brevicaulis isolates. Antifungal susceptibility tests were performed using a modified Clinical and Laboratory Standards Institute M38-A2 procedure. The results showed that itraconazole had the highest minimal inhibitory concentration (MIC) of >16 mg/l; amphotericin B, voriconazole, and ketoconazole MICs were ranging from 4 to >16 mg/l, 8 to >16 mg/l, and 8 to >16 mg/l, respectively; and the best activity was found with terbinafine and ciclopirox with MICs ranging from 0.5 to 16 mg/l and 1 to 8 mg/l, respectively.

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