MALDI-TOF MS

Yeast Identification by MALDI-TOF (VITEK): Introduction, Principle, Clinical Significance, and Keynotes

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Yeast Identification by MALDI-TOF (VITEK): Introduction, Principle, Clinical Significance, and Keynotes

Introduction Yeasts, especially Candida species, are among the most important causes of opportunistic fungal infections in humans. Accurate and rapid identification is crucial for guiding antifungal therapy and improving patient outcomes. Traditional phenotypic methods are time-consuming and often misidentify cryptic species. Matrix-Assisted Laser Desorption/Ionization Time-of-Flight …

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Acinetobacter ursingii: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynote

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Introduction Acinetobacter ursingii is a Gram-negative, non-fermentative, opportunistic bacterium belonging to the genus Acinetobacter. It is an uncommon species compared to Acinetobacter baumannii, but it has been increasingly recognized in healthcare-associated infections (HAIs). Reported cases include bacteremia, septicemia, pneumonia, urinary tract infections, and bloodstream infections, …

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Mold Identification by MALDI-TOF (BRUKER)-Introduction, Principle, Clinical Significance, and Keynotes

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Introduction Accurate and timely identification of molds is essential for clinical microbiology, especially in cases of invasive fungal infections caused by Aspergillus, Fusarium, Scedosporium, Mucorales, and other filamentous fungi. Traditional methods based on morphology and phenotypic characteristics are slow, require expertise, and may misidentify cryptic …

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Fungal Identification by Artificial Intelligence (AI): Introduction, Working Mechanisms, Clinical Significance, and Keynotes

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Yeast and mold growth on SDA agar

Introduction Fungal infections represent a growing concern in both immunocompromised and immunocompetent individuals. Conventional identification methods, including culture, microscopy, and biochemical testing, often require several days and may lack sensitivity or specificity for certain opportunistic fungi. Molecular techniques such as PCR and sequencing have improved …

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Penicillium vs Paecilomyces: Introduction, Detailed Comparison, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

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Penicillium typical structure in LPCB preparation

Introduction of Penicillium vs Paecilomyces Penicillium is a ubiquitous, saprophytic mold found in soil, air, and decaying organic matter. Known for producing the first antibiotic, penicillin, it is typically non-pathogenic but occasionally causes opportunistic infections in immunocompromised hosts. Paecilomyces (especially P. lilacinus and P. variotii) …

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Fungemia-Introduction, Common Fungi, Clinical Feature, Lab Diagnosis, Treatment, and Prevention

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Blood fungal culture bottles containing a biphasic medium used for detecting fungal growth in fungemic patients

Introduction Fungemia refers to the presence of fungi in the bloodstream, indicating systemic fungal infection. Candida species are most commonly responsible, but other yeasts and molds may also invade the bloodstream. Fungemia is a medical emergency, especially in ICU patients, immunocompromised hosts, post-surgical cases, and …

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Candida albicans vs. Candida dubliniensis: Introduction, Differences, and Keynotes

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Candida albicans growth on Sabouraud dextrose agar (SDA)

Introduction of Candida albicans vs. Candida dubliniensis Both Candida albicans and Candida dubliniensis are closely related yeast species belonging to the genus Candida.They share similar morphological features but differ in pathogenicity, epidemiology, and phenotypic characteristics. Differences Between C. albicans and C. dubliniensis Feature Candida albicans …

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Candida auris Screening in a Simple Setup: Introduction, When to Suspect it, Identification Methods,Confirmatory Identification, and Summary Table

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Candida auris colony morphology

Introduction of Candida auris Screening in a Simple Setup Candida auris Screening in a Simple Setup is possible to presumptively identify Candida auris in a simple laboratory setup, though definitive identification typically requires advanced methods. In resource-limited or basic clinical microbiology labs, we can still …

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