Genetic mutations in Cryptococcus neoformans pyrimidine salvage pathway enzymes contribute to reduced susceptibility against 5-fluorocytosine.

Cryptococcal meningitis is a high-mortality infection. Adding 5-fluorocytosine (5-FC) to its treatment improves outcomes, but resistance to 5-FC presents a significant challenge. We conducted whole-genome sequencing on seven C.

Multicenter validation of a galactomannan chemiluminescence immunoassay for the diagnosis of pulmonary aspergillosis on serum of patients with hematological disease.

An accurate diagnosis of invasive aspergillosis (IA) in patients with underlying hematological malignancies relies heavily on galactomannan detection. In this study, we compared the VirCLIA chemiluminescence immunoassay (CLIA) with the frequently used Platelia enzyme-linked immunosorbent assay (ELISA) on serum from hematology patients with suspected IA. Patients were categorized according to EORTC/MSGERC 2020 definitions into proven/probable IA and possible/no IA.

Emerging antifungal resistance in : insights from susceptibility profiling and genetic mutation analysis.

species, the leading cause of dermatophytosis globally, are increasingly resistant to antifungal treatments, concerns about effective management strategies. In light of the absence of established resistance criteria for terbinafine and azoles, coupled with a dearth of research on resistance mechanisms in , antifungal susceptibility and drug resistance gene diversity were analyzed across 64 , 65 , and 2 isolates collected in China between 1999 and 2024 and 101 published strains. Analyses of the minimum inhibitory concentrations (MICs) of terbinafine, itraconazole, voriconazole, posaconazole, and isavuconazole revealed a concerning increase in with terbinafine resistance, including two novel isolates from China.

Wild-type MIC distributions and epidemiological cutoff values for 5-flucytosine and species as determined by EUCAST broth microdilution.

Objectives: EUCAST has established clinical breakpoints and epidemiological cutoff values (ECOFFs) for spp. However, limited data are available for 5-flucytosine (5-FC). We assessed the susceptibility of 5-FC against a large collection of clinical species using EUCAST methodology and determined the associated ECOFFs.