Invasive fungal infection – Page 2

Comparative Study and Transcriptomic Analysis on the Antifungal Mechanism of Ag Nanoparticles and Nanowires Against Trichosporon asahii

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Researchers compared two types of tiny silver particles (nanoparticles and nanowires) as potential treatments for a dangerous fungal infection caused by Trichosporon asahii. Silver nanowires were found to be more effective than nanoparticles at killing the fungus by damaging its cell membranes and disrupting its energy production. The study identified 15 key genes involved in how silver nanowires attack the fungus, suggesting these nanomaterials could become useful alternatives to traditional antifungal drugs.

Geotrichosis Due to Magnusiomyces capitatus: A Severe Emerging Invasive Fungal Disease

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A 71-year-old man with cancer undergoing chemotherapy developed a rare and serious fungal blood infection caused by Magnusiomyces capitatus. Despite treatment with antifungal medications, the infection spread throughout his body and he died 10 days after admission. This case highlights how some fungi can resist common antifungal drugs and the importance of quickly identifying the exact type of fungus causing an infection to choose the right treatment.

Rasamsonia argillacea brain abscess in a lung transplant recipient: an unexpected infection by an unusual fungal pathogen

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A 65-year-old woman who received a lung transplant developed a rare and serious brain infection caused by an unusual fungus called Rasamsonia argillacea. The infection was difficult to diagnose because it looks similar to more common molds under the microscope. During the investigation of this unexpected infection, doctors discovered that the patient had a rare genetic disorder affecting her immune system that had never been diagnosed. This case highlights how unusual infections can reveal hidden immune system problems.

Masquerading Yeast: A Case Report of Lomentospora prolificans Fungemia With a Diagnostic Twist

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This case describes a patient with blood cancer who developed a rare and deadly mold infection called Lomentospora prolificans while receiving cancer treatment. The infection was difficult to diagnose initially because the fungal structures looked similar to yeast under the microscope, and a molecular test gave a false positive result for a different fungus. Unfortunately, the infection was resistant to all available antifungal medications and the patient died.

The In vitro Effect of Nanoliposomal Amphotericin B Against Rhizopus arrhizus Isolated From COVID-19-Associated Mucormycosis Patients

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Scientists tested a new nano-formulation of the antifungal drug amphotericin B against a dangerous fungus (Rhizopus arrhizus) that infected COVID-19 patients with mucormycosis. The nanoliposomal version of the drug worked much better than regular amphotericin B and other antifungal medications currently used, showing much lower concentrations needed to kill the fungus. This research suggests the new nano-formulation could be a more effective treatment option for patients with this serious COVID-19 related fungal infection.

First case of invasive Rasamsonia argillacea in a child with chronic granulomatous disease in Qatar

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A 16-year-old girl with a rare immune system disorder called chronic granulomatous disease developed a serious fungal infection caused by Rasamsonia argillacea, a fungus that is not commonly seen in clinical practice. The infection presented as a painful collection in her chest wall that required surgery and multiple antifungal medications. This is the first reported case of this particular fungal infection in the Arabian Peninsula, and successful treatment required a combination of drugs chosen based on laboratory testing of the fungus’s resistance patterns.

The diagnosis of mucormycosis by PCR in patients at risk: a systematic review and meta-analysis

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Mucormycosis is a dangerous fungal infection that kills many patients. Traditional tests like fungal culture are slow and often miss infections. This comprehensive study of 30 research papers shows that PCR testing is very effective at detecting this fungus, with different specimen types having different success rates. Blood tests were easiest to perform and worked well for screening high-risk patients, while fluid from the lungs was the most accurate.

Saksenaea oblongispora Rhinosinusitis in Advanced HIV: A Rare and Lethal Mucormycosis

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A 32-year-old man with advanced HIV developed a severe fungal infection of his sinuses caused by a rare fungus called Saksenaea oblongispora, which typically doesn’t affect people with HIV. The patient presented with severe facial swelling that rapidly worsened, and despite doctors identifying the fungus through biopsies and lab tests, he did not receive antifungal treatment or surgery before his condition became critical. This is the first case of this particular fungal infection documented in sub-Saharan Africa and in HIV patients, highlighting how dangerous this rare infection can be and how challenging it is to diagnose quickly enough to save lives.

Candidemia due to Candida lambica in a neutropenic oncology patient: A rare case report

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A 56-year-old cancer patient developed a serious bloodstream infection caused by a rare yeast called Candida lambica despite taking antifungal medications. Doctors identified the infection using genetic sequencing and found that the organism was sensitive to a different antifungal drug called voriconazole. After switching medications and removing the patient’s central line, the infection cleared up. This case demonstrates the importance of accurately identifying fungal infections and testing which medications work best against them.

Epidemiology of mucormycosis in COVID-19 patients in northwest Iran: Rhizopus arrhizus as the predominant species

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During the COVID-19 pandemic, some patients developed a severe fungal infection called mucormycosis alongside their coronavirus infection. This study found that 63 COVID-19 patients in Iran developed mucormycosis, which primarily affected the sinuses and brain. The researchers identified that a fungus called Rhizopus arrhizus caused most infections, and patients who received corticosteroids (used to treat severe COVID-19) had a higher risk, especially those who developed diabetes from the steroids.

Disease: Invasive fungal infection