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Azoles susceptibility profiles of more than 9,000 clinical yeast isolates belonging to 40 common and rare species

Abstract : Invasive yeast infections represent a major global public health issue and only few antifungal agents are available. Azoles are one of the classes of antifungals used for treatment of invasive candidiasis. The determination of antifungal susceptibility profiles using standardized methods is important to identify resistant isolates and to uncover the potential emergence of intrinsically-resistant species. We here report data on 9,319 clinical isolates belonging to 40 pathogenic yeast species recovered in France over 17 years. The antifungal susceptibility profiles were all determined at the National Reference Center for Invasive Mycoses and Antifungals based on the EUCAST broth microdilution method. The centralized collection and analysis allowed us to describe the trends of azoles susceptibility of isolates belonging to common species, confirming the high susceptibility for C. albicans (n=3,295), C. tropicalis (n=641), C. parapsilosis (n=820), and decreased susceptibility for C. glabrata (n=1,274), and P. kudriavzevii (n=343). They also provide interesting data concerning azole susceptibility of Cr. neoformans species complex: showing comparable MICs distribution for the three species but lower MIC50 and MIC90 for serotype D (n=208) compared to serotype A (n=949) and AD hybrids (n=177). Finally, these data provide useful information for rare and/or emerging species such as C. lusitaniae (n=221), S. clavata (n=184), M. guilliermondii complex (n=150), C. haemulonii complex (n=87), R. mucilaginosa (n=55), W. anomalus (n=36).
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Submitted on : Tuesday, April 13, 2021 - 2:33:07 PM
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Marie Desnos-Ollivier, Olivier Lortholary, Stéphane Bretagne, Françoise Dromer, The French Mycoses Study Group. Azoles susceptibility profiles of more than 9,000 clinical yeast isolates belonging to 40 common and rare species. Antimicrobial Agents and Chemotherapy, American Society for Microbiology, 2021, ⟨10.1128/AAC.02615-20⟩. ⟨pasteur-03197059⟩



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