Publications by authors named "Spruijtenburg B"

The anthropophilic dermatophyte Trichophyton interdigitale and its counterpart T. mentagrophytes are phylogenetically closely related species. In India, the most common endemic dermatophyte species belongs to the T.

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Sporotrichosis by Sporothrix brasiliensis is increasingly reported in South America. Here, we present the first autochthonous human case in Paraguay, transmitted by a local infected cat. After 63 days of clinical signs onset, the patient was correctly diagnosed and antifungal treatment started, highlighting the need to increase awareness for this emerging disease.

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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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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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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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Objectives: Candida tropicalis is a medically important yeast with increasing antifungal resistance, but nosocomial transmission is rarely reported. This study genotyped C. tropicalis isolates from Italian hospitals to uncover potential nosocomial transmission and assess resistance.

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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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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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Article Synopsis
  • The study investigates three unusual isolates of the fungal pathogen Candida auris found in Singapore, aiming to determine if they represent a new and distinct clade from the known clades (I-V).
  • Through whole-genome sequencing and antifungal susceptibility testing, researchers found that the isolates were genetically separated from existing clades by a significant number of single nucleotide polymorphisms and had unique genetic characteristics.
  • The findings suggest these isolates are a novel clade, referred to as clade VI, highlighting an emerging public health concern due to their resistance patterns and potential for increased transmission.
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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: 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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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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is considered a highly virulent emerging pathogen that causes sporotrichosis in humans, mainly after zoonotic transmission from infected cats. The epidemic of this zoonosis that originated from Brazil has spread in the last decades, generating hyperendemic regions in Latin America. We present two cases of human sporotrichosis causes by in Buenos Aires, Argentina, with good clinical response to differing treatments after contact with sick cats.

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Candida krusei also known as Pichia kudriavzevii is a potentially multidrug-resistant yeast because it is intrinsically resistant to fluconazole and develops acquired resistance to echinocandins and polyenes. Here, we aim to provide a better understanding of the epidemiology and transmission modes of C. krusei infections by comparing invasive bloodstream (n = 35) and non-invasive vaginal (n = 20) C.

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is a newly emerging multidrug-resistant fungal pathogen considered to be a serious global health threat. Due to diagnostic challenges, there is no precise estimate for the prevalence rate of this pathogen in Iran. Since 2019, only six culture-proven cases have been reported from Iran, of which, five belonged to clade V and one to clade I.

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Candida auris is an emerging, multidrug-resistant yeast, causing outbreaks in healthcare facilities. Echinocandins are the antifungal drugs of choice to treat candidiasis, as they cause few side effects and resistance is rarely found. Previously, immunocompromised patients from Kuwait with C.

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Article Synopsis
  • The IR Biotyper is a novel and simple tool for identifying bacterial species but has limitations for certain species; this study focused on fluconazole-resistant *Candida auris*, a common cause of bloodstream infections.
  • Of 59 *Candida auris* isolates from two different Italian hospitals, researchers identified mutations linked to fluconazole resistance, finding two main mutation types present in the isolates.
  • The effectiveness of the IR Biotyper was tested against microsatellite typing, revealing varying congruence rates (47% to 74%) depending on the analysis method, emphasizing its potential for improving the tracking of clinical isolates to prevent hospital transmission.
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