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Introduction The Xpert MTB/RIF assay is an automated, cartridge-based molecular test used to detect Mycobacterium tuberculosis (MTB) and rifampicin (RIF) resistance, the most potent first-line anti-TB drug. Endorsed by the WHO in 2010, the Xpert MTB/RIF assay revolutionized TB diagnosis by providing results in less than two …
Introduction of Bacterial Load (Decoding the CFU) Bacterial load, measured in Colony-Forming Units (CFU), is a fundamental concept in microbiology used to estimate the number of viable (living) microorganisms in a sample. Unlike total cell counts that include dead bacteria, the CFU method only counts …
Introduction Middlebrook 7H9 broth is a liquid growth medium first described in 1958 by Middlebrook and Cohn for the specialized cultivation of Mycobacterium species. It is widely used in clinical and research settings for rapid growth, biochemical testing, and preparing inocula for drug susceptibility testing …
Introduction Aspergillus antibody testing, specifically IgG and IgE, helps diagnose aspergillosis, particularly chronic pulmonary aspergillosis and allergic bronchopulmonary aspergillosis, by detecting antibodies in the blood against the fungus. Types of Tests Clinical Significance Interpreting Results Keynotes Further Readings
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. …