Coccidioides-Antigen Testing: Introduction, Purpose, How it works, When it’s used, Types of antigen tests, Limitation, and More

Introduction Coccidioides antigen testing, used to diagnose coccidioidomycosis (also known as valley fever),  detects the presence of fungal antigens in bodily fluids like urine, serum, or cerebrospinal fluid. This aids in faster and more accurate diagnosis, especially in immunocompromised individuals or those with severe disease.  …

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Prototheca: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Prototheca in Gram staining

Introduction Morphology Prototheca exhibits a unique morphology in cultural media. It forms smooth, creamy colonies on SDA. Moreover, its colonies remain non-filamentous. It produces spherical or oval cells in microscopic preparations. Furthermore, cells display a thick, refractile wall. In addition, internal endospores are occasionally arranged …

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Sclerotic Bodies: Introduction, Lab Diagnosis, Clinical Significance, and Keynotes

Photomicrograph of Sclerotic Bodies in KOH Mounts from Skin Scrapings of Patients with Suspected Chromoblastomycosis

Introduction Sclerotic Bodies, also known as Medlar Bodies or muriform cells, are thick-walled, pigmented fungal elements typically observed in chromoblastomycosis. Their diagnostic importance lies in their pathognomonic appearance in tissue sections, which confirms the presence of dematiaceous fungi and helps guide appropriate antifungal treatment. Lab …

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Aspergillus fumigatus Rapid Azole Screen Test (4-wells plate):Introduction, Principle, Test Methods, Test Procedure, Result-Interpretation, Clinical Significance, and Keynotes

Aspergillus fumigatus Rapid Azole Screen Test (4-wells plate)

Introduction The Aspergillus fumigatus Rapid Azole Screen Test uses a 4-well plate format. It detects azole resistance in fungal isolates. Clinicians request this test to guide effective treatment. Moreover, the assay produces results faster than traditional methods. It minimizes the time needed to decide on …

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Fungal Identification by NGS: Introduction, Principle, Test Methods, Test Procedure, Result-Interpretation, Clinical Significance, and Keynotes

PCR products of fungal DNA from pure culture after amplification with primers

Introduction Fungal identification by NGS (Next-Generation Sequencing) uses advanced DNA sequencing. Moreover, it rapidly detects diverse fungal species. It enhances diagnostic accuracy. Additionally, it supports personalized treatment decisions. Principle NGS sequences fungal DNA directly. Consequently, it generates millions of short DNA reads. Then, bioinformatics tools …

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Influenza A and Influenza B Rapid Test: Introduction, Principle, Procedure, Result-Interpretation, Clinical Significance and Keynotes

Influenza A and Influenza B Rapid Test-Negative

Introduction This test rapidly detects influenza A and B antigens. It employs a chromatographic assay format. Moreover, it is simple to perform. Principle The test uses immunochromatography. It employs specific antibodies to bind viral antigens. Furthermore, it uses color changes for detection. Thus, it yields …

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Paracoccidioides-Antibody Testing: Introduction, Principle, Clinical Significance, and Keynotes

Paracoccidioides-Antibody Testing- Introduction, Principle, Clinical Significance, and Keynotes

Introduction Paracoccidioides antibody testing detects antibodies against the Paracoccidioides species. It plays a vital role in diagnosing paracoccidioidomycosis (PCM). Additionally, clinicians use this test to confirm suspected cases. Moreover, the assay identifies immune responses in patient serum. Furthermore, laboratories perform standardized serological tests such as …

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MDR ESKAPE-Introduction, Group of Pathogens, Clinical Importance, and Keynotes

Mucoid -lactose fermenting (MLF) colony of Klebsiella pneumonie on MacConkey agar of blood culture

Introduction MDR ESKAPE refers to a group of bacteria that resist multiple antibiotics. Firstly, these pathogens escape the effects of standard treatments. Moreover, they spread easily in healthcare settings. Additionally, they cause serious hospital-acquired infections. Consequently, clinicians face challenges treating these infections. Furthermore, MDR ESKAPE …

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