molecular identification – Page 3

Madurella tropicana and Madurella pseudomycetomatis identified as new causative agents of black grain eumycetoma in Senegal

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This case report describes two patients in Senegal with a serious fungal infection called eumycetoma caused by previously unidentified fungal species. Using modern DNA sequencing methods, researchers identified the infections as being caused by Madurella tropicana and Madurella pseudomycetomatis, rather than the previously known Madurella mycetomatis. One patient treated with the antifungal drug itraconazole showed good improvement, highlighting the importance of accurate identification for proper treatment.

Successful Management of Spondylodiscitis Caused by Aspergillus nidulans: A Case Report and Literature Review

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A 59-year-old patient with lymphoma developed a serious fungal spine infection caused by Aspergillus nidulans, a rare mold. The infection was diagnosed using imaging, fungal cultures, and laboratory testing. The patient was successfully treated with a 6-month course of the antifungal drug voriconazole without requiring surgery. This case is notable because it represents the first successful treatment of this extremely rare infection in a cancer patient.

Fatal Pneumonia Caused by Beauveria bassiana in a Kemp’s Ridley Sea Turtle (Lepidochelys kempii, Garman, 1880) on the Portuguese Coast: Case Report and Review of Beauveria spp. Infections in Reptiles

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A young Kemp’s ridley sea turtle, one of the world’s most endangered turtle species, was found off the coast of Portugal and brought to a rehabilitation center. Despite intensive care, the turtle died after 11 days due to a severe fungal lung infection caused by Beauveria bassiana, a fungus that normally infects insects. This case highlights how endangered animals in poor health are vulnerable to opportunistic infections and emphasizes the importance of including fungal disease screening in wildlife rehabilitation programs.

Traumatic implantation keratitis caused by Schizophyllum commune in Central India

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This report describes two patients in India who developed serious fungal eye infections (keratitis) after corneal injuries. The infection was caused by Schizophyllum commune, a mushroom-like fungus found on decaying wood. Despite aggressive treatment with antifungal medications and surgery, both patients lost vision in their affected eyes. The case highlights how difficult it is to identify and treat this rare fungus.

Candida blankii: The Difficult Capture of a Fungus With Pathogenic Potential

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Candida blankii is a rare fungal pathogen that is increasingly being found in hospital patients’ bloodstreams and respiratory tracts. The organism is difficult to identify using standard laboratory tests, which can delay diagnosis and treatment. This case report describes two adult patients with C. blankii infections and highlights the challenges in identifying this emerging pathogen and its resistance to common antifungal medications.

Morphological and Molecular Characterization of Lasiodiplodia theobromae Causing Stem Gummosis Disease in Rubber Trees and Its Chemical Control Strategies

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Rubber trees in China experienced a serious stem gummosis disease that caused bark cracking and latex leakage in 2023. Scientists identified the fungus Lasiodiplodia theobromae as the cause through laboratory and molecular tests. They successfully treated the disease using a combination of copper-based fungicides applied to tree trunks and roots, preventing further damage to the trees.

Diaporthe foeniculina and D. eres, in addition to D. ampelina, may cause Phomopsis cane and leaf spot disease in grapevine

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Researchers found that three different fungal species, not just one, cause a disease called Phomopsis cane and leaf spot in grapevines grown in Southern Europe. While Diaporthe ampelina remains the primary culprit, two other species (D. eres and D. foeniculina) can also cause the same disease symptoms. Interestingly, these different fungi prefer different temperatures for growth, which means farmers may need to adjust their disease management strategies based on which species is present in their vineyards.

Simultaneous infection with Fusarium proliferatum and Prototheca wickerhamii localized at different body sites

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An 81-year-old woman taking long-term steroid medication developed two different fungal skin infections on her hands simultaneously – one on the right hand from a moldy wooden frame and one on the left hand possibly from sewage exposure. Doctors identified both fungi through microscopy and genetic testing. She was successfully treated with an antifungal medication called voriconazole for four weeks and recovered completely.

First reported Canadian case of Trichophyton mentagrophytes genotype VII infection among men who have sex with men (MSM)

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A Canadian man contracted a rare fungal skin infection caused by Trichophyton mentagrophytes genotype VII during a trip to Mexico, likely through sexual contact. The infection presented as deep, painful lesions in the genital area that didn’t respond to typical treatments and required 10 weeks of oral and topical antifungal medication to cure. This is the first confirmed case in Canada and highlights the importance of doctors being aware of sexually transmitted fungal infections, especially in patients with unusual rashes that don’t improve with standard treatments.

Phaeoacremonium tuscanicum and Phaeoacremonium indicum sp. nov. associated with subcutaneous phaeohyphomycosis

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Researchers identified and described two rare fungal infections caused by Phaeoacremonium species in human patients. One case involved a previously unknown fungal species in humans called Phaeoacremonium indicum, discovered in an Indian transplant patient with a knee infection. Both cases were successfully treated with surgery, with one patient also receiving antifungal medication, demonstrating effective treatment approaches for these unusual infections.

Research Keyword: molecular identification