51 results match your criteria: "Radboudumc-CWZ Center of Expertise for Mycology[Affiliation]"

Trichophyton indotineae, first identified in India, has increasingly been reported in Asia, the Middle East, Europe, and recently in the USA. The global spread of terbinafine-resistant T. indotineae underscores the urgency of the issue.

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Background: Microsporum canis, a dermatophyte commonly associated with pets, is a leading cause of severe tinea capitis. The increasing prevalence of antifungal resistance among dermatophytes poses a significant global health challenge.

Objectives: This study aims to define the updated antifungal susceptibility profile of M.

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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 2001 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.

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In 2019, became the first fungal pathogen included in the list of the urgent antimicrobial threats by the Centers for Disease Control (CDC). Short tandem repeat (STR) analysis and whole-genome sequencing (WGS) are considered the gold standard, and can be complemented by other molecular methods, for the genomic surveillance and clade classification of this multidrug-resistant yeast. However, these methods can be expensive and require time and expertise that are not always available.

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Mucormycosis is a rare, severe fungal infection mainly affecting immunocompromised individuals. Because of limited data on its epidemiology in Oman, we present this national, multicentric, retrospective review that includes all cases of proven mucormycosis between 2006 and 2022 in Oman. There were 51 cases of mucormycosis reported in Oman.

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Accurate identification and rapid genotyping of , a significant opportunistic pathogen in healthcare settings, is crucial for managing outbreaks, timely intervention, and effective infection control measures. This study includes 24 clinical samples and 2 positive environmental surveillance swabs collected during a fluconazole-resistant outbreak at the Tuscany Rehabilitation Clinic (Clinica di Riabilitazione Toscana, CRT), located in the province of Arezzo, Italy. Fourier-transform infrared (FTIR) spectroscopy, genetic sequencing of the ERG11 gene, and short tandem repeat (STR) analysis was applied to track the fluconazole-resistant outbreak at the CRT facility.

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Objectives: Worldwide emergence of clonal outbreaks caused by fluconazole-resistant (FLCR) and the recent emergence of echinocandin- and multidrug-resistant (ECR and MDR) Candida parapsilosis isolates pose serious threats to modern clinics. Conducting large-scale epidemiological studies aimed at determining the genetic composition and antifungal resistance rates is necessary to devise antifungal stewardship and infection control strategies at international, national and local levels. Despite being severely hit by outbreaks due to FLCR C.

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Clonal outbreak of Candida vulturna in a paediatric oncology ward in Maranhão, Brazil.

J Infect

December 2024

Radboudumc-CWZ Center of Expertise for Mycology, Nijmegen, the Netherlands; Department of Medical Microbiology, Radboud University Medical Center, Nijmegen, the Netherlands; Institute of Translational Research, Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD) and Excellence Center for Medical Mycology, University of Cologne, Cologne, Germany. Electronic address:

Objective: To describe an outbreak due to Candida vulturna, a newly emerging Candida species belonging to the Candida haemulonii species complex in the Metschnikowiaceae family.

Methods: In this retrospective cohort study we genotyped 14 C. vulturna bloodstream isolates, occurring in a 4-month-period in paediatric cancer patients in a Brazilian hospital.

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Article Synopsis
  • - After COVID-19 began, there was a significant increase in invasive fungal infections globally, but the specific situation in Greece regarding fungaemias remains unclear.
  • - An ongoing outbreak in a Greek hospital has led to 89 episodes of bloodstream infections over nearly three years, with these episodes occurring in waves linked to previous colonization peaks.
  • - Most fungal isolates were found to be resistant to fluconazole but sensitive to other antifungals, highlighting the importance of infection control and careful use of antifungal treatments to prevent resistance.
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  • The study focused on comparing the effectiveness of chlorhexidine (CHX) and seven antifungal agents against fungi from patients with fungal keratitis (FK).
  • Testing involved 73 fungi samples using a standard method, where CHX demonstrated notable efficacy against various types of fungi at specific concentrations.
  • Results suggested that CHX could be a cost-effective topical treatment for FK, especially in areas with limited access to antifungal medications, while posaconazole was identified as the most effective antifungal overall.
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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.

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Article Synopsis
  • Recent outbreaks of multidrug-resistant fungi in healthcare settings highlight the need for effective antifungal susceptibility testing (AST) to manage invasive infections.* -
  • The study compared the performance of Etest and broth microdilution-based MICRONAUT-AM-EUCAST assays by testing 121 clinical isolates, revealing significant discrepancies in fluconazole and amphotericin B resistance assessments.* -
  • Findings suggest that MCN-AM underestimates fluconazole resistance, while Etest overestimates amphotericin B resistance, indicating a need for method-specific resistance breakpoints to improve clinical outcomes.*
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The WHO research agenda for antimicrobial resistance (AMR) in human health has identified 40 research priorities to be addressed by the year 2030. These priorities focus on bacterial and fungal pathogens of crucial importance in addressing AMR, including drug-resistant pathogens causing tuberculosis. These research priorities encompass the entire people-centred journey, covering prevention, diagnosis, and treatment of antimicrobial-resistant infections, in addition to addressing the overarching knowledge gaps in AMR epidemiology, burden and drivers, policies and regulations, and awareness and education.

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Fungal infections pose an increasing threat to public health. New pathogens and changing epidemiology are a pronounced risk for nosocomial outbreaks. To investigate clonal transmission between patients and trace the source, genotyping is required.

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Article Synopsis
  • * A case study highlights a 46-year-old woman with chromoblastomycosis, confirming the diagnosis through skin examinations and fungal cultures, while also revealing co-infestation by fly larvae.
  • * The patient was successfully treated with voriconazole and terbinafine, highlighting the need for awareness and understanding of chromoblastomycosis in occupationally exposed individuals in affected regions.
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Candidemia is a major cause of morbidity and mortality in health care settings, and its epidemiology is changing. In the last two decades, the proportion of non- (NAC) yeasts in candidemia has increased. These yeasts more often display resistance to common antifungals.

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Pitfalls in definitions on respiratory viruses and particularities of Adenovirus infection in hematopoietic cell transplantation patients: Recommendations from the EBMT practice harmonization and guidelines committee.

Curr Res Transl Med

September 2024

Dept. of Cellular Therapy and Allogeneic Stem Cell Transplantation, Karolinska Comprehensive Cancer Center, Karolinska University Hospital Huddinge, Stockholm, Sweden; Dept. of Medicine Huddinge, Karolinska Institutet (KI), Stockholm, Sweden. Electronic address:

In 2023, the EBMT Practice harmonization and Guidelines Committee partnered with the EBMT Infection Diseases Working Party (IDWP) to undertake the task of delivering best practice recommendations, aiming to harmonize by expert consensus, the already existing definitions and future epidemiological and clinical studies among centers of the EBMT network. To attain this objective, a group of experts in the field was convened. The workgroup identified and discussed some critical aspects in definitions of community-acquired respiratory viruses (CARV) and adenovirus (ADV) infections in recipient of hematopoietic cell transplant (HCT).

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The genus Aspergillus consists of a vast number of medically and environmentally relevant species. Aspergillus species classified in series Versicolores are ubiquitous in the environment and include the opportunistic pathogen Aspergillus sydowii, which is associated with onychomycosis and superficial skin infections. Despite frequent clinical reports of A.

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Background: Isavuconazole is a relatively new antifungal agent indicated for the management of various invasive fungal diseases (IFDs), including invasive aspergillosis. Information on real-world experience with isavuconazole is scarce. This retrospective observational study aimed to describe the usage of isavuconazole in clinical practice with an in-depth evaluation of individual isavuconazole exposure.

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Background: Candida auris is an emerging multidrug-resistant yeast, frequently causing outbreaks in health care facilities. The pathogen persistently colonises human skin and inanimate surfaces such as catheters, aiding to its spread. Moreover, colonisation is a risk factor to develop invasive infection.

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Aspergillus fumigatus is a saprophytic fungal pathogen that causes opportunistic infections in animals and humans. Azole resistance has been reported globally in human A. fumigatus isolates, but the prevalence of resistance in isolates from animals is largely unknown.

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Purpose: Rare yeasts species are increasingly reported as causative agents of invasive human infection. Proper identification and antifungal therapy are essential to manage these infections. Candida blankii is one of these emerging pathogens and is known for its reduced susceptibility to multiple antifungals.

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Article Synopsis
  • * The Vitek 2 system showed poor agreement for certain antifungals like 5-flucytosine, fluconazole, and amphotericin B, but achieved moderate to high agreement for echinocandin drugs like micafungin and caspofungin.
  • * Resistance was often misclassified, with the Vitek 2 underestimating fluconazole resistance and overestimating amphotericin B resistance, though using specific Vitek 2 values improved agreement rates
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