Disease: tinea cruris

Recalcitrant dermatophytosis due to Trichophyton indotineae: A case series from Sarawak, Malaysia

Three patients in Malaysia had persistent skin fungal infections caused by Trichophyton indotineae that did not respond to standard antifungal treatments. Genetic testing revealed these fungal strains carried a specific mutation making them resistant to terbinafine, the typical first-line treatment. While azole-based antifungals showed variable effectiveness depending on the specific drug and dose used, one patient achieved complete cure with voriconazole therapy. The study highlights the growing problem of drug-resistant fungal infections and the importance of targeted treatment based on laboratory testing.

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Emergence of resistant dermatophytosis caused by Trichophyton indotineae: First case series in Thailand

Researchers in Thailand have identified the first cases of a new resistant fungal skin infection caused by Trichophyton indotineae. This fungus is resistant to a commonly used antifungal drug called terbinafine and causes persistent skin rashes on various body parts. The study describes five patients whose infections were finally identified through genetic testing and who responded well to alternative antifungal treatment with itraconazole. This discovery suggests the fungus is now spreading in Thailand and doctors should watch for it.

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Randomized control trial to study the effectiveness of tablet Fluconazole, capsule Itraconazole and tablet Terbinafine in superficial dermatophytosis

This study tested three common antifungal medications used to treat fungal skin infections like ringworm. The research involved 180 patients who were randomly given one of three drugs and then checked at 4 and 8 weeks to see if the infection was gone. Itraconazole worked best, clearing infections in about 87% of patients, followed by Fluconazole at 73%, and Terbinafine at 63%.

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Emergence of resistant dermatophytosis caused by Trichophyton indotineae: First case series in Thailand

Doctors in Thailand have identified a new drug-resistant fungal infection caused by Trichophyton indotineae, a fungus that doesn’t respond to common antifungal medication terbinafine. Five patients were diagnosed with this resistant skin infection that caused rashes on various body parts and failed to improve with standard treatments. The research shows that a simple urease test can help doctors quickly identify this resistant fungus, and a different drug called itraconazole appears to work better for treatment. This is the first time this resistant fungus has been confirmed in Thailand, suggesting it is spreading globally.

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Northwest Iranian dermatophyte isolates: anthropophilic and geophilic

Researchers in northwestern Iran studied fungal infections of skin, hair, and nails by identifying different types of dermatophytes from patient samples and soil. They found that a fungus called Trichophyton mentagrophytes was the most common cause, but also discovered a rare fungus called Myriodontium keratinophilum causing nail infections. Using modern DNA testing methods, they identified seven different dermatophyte species and several other soil fungi, providing important information about fungal infections in this region.

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Spread of Antifungal-Resistant Trichophyton indotineae, United Kingdom, 2017–2024

A highly resistant fungal infection called Trichophyton indotineae is rapidly spreading throughout the United Kingdom. Originally from southern Asia, this fungus causes difficult-to-treat skin infections, particularly in the groin area, and resists standard antifungal medications in about three-quarters of cases. Since 2023, cases have spread from London to other parts of the UK and Ireland, and experts predict it will soon become the leading cause of ringworm in the country.

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Treatment and diagnostic challenges associated with the novel and rapidly emerging antifungal-resistant dermatophyte, Trichophyton indotineae

A new type of fungal infection called Trichophyton indotineae has emerged and spread globally, particularly from India. It causes widespread skin infections that are difficult to treat because the fungus resists common antifungal medications. Doctors and laboratories need to be aware of this infection to properly identify it and choose effective treatments, especially for patients with travel history to affected regions.

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Integrating Machine Learning and Molecular Methods for Trichophyton indotineae Identification and Resistance Profiling Using MALDI-TOF Spectra

A new type of fungus called Trichophyton indotineae is causing stubborn skin infections that don’t respond well to standard antifungal treatments. Researchers used advanced laboratory techniques combined with computer analysis to better identify this fungus from MALDI-TOF spectra, which is a quick fingerprinting method for microorganisms. The study showed that machine learning could accurately distinguish this problematic fungus from similar species and found specific markers that could help clinics detect it faster, potentially improving patient treatment outcomes.

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qPCR-Based Molecular Detection of Trichophyton indotineae by Targeting Divergent Sequences

Trichophyton indotineae is a dangerous fungal infection that causes ringworm and is increasingly resistant to common antifungal treatments. Scientists developed a rapid blood test-like diagnostic tool called qPCR that can accurately identify this specific fungus in less than 2 hours for just a few dollars. The test was created by comparing the genetic codes of different fungal species to find unique fingerprints that distinguish T. indotineae from similar-looking fungi.

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Utility of MALDI-ToF MS for Recognition and Antifungal Susceptibility of Nannizzia, an Underestimated Group of Dermatophytes

Nannizzia species are soil-dwelling fungi that increasingly cause stubborn skin, nail, and hair infections in humans and animals. This study tested two laboratory methods for identifying these fungi and measured their sensitivity to eight antifungal drugs. The faster liquid-based method was slightly more accurate (67%) than the traditional culture method (62%), though neither method could identify six very rare species. Terbinafine emerged as the most effective antifungal treatment in laboratory tests.

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