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Tag: Mycobacteria

link to Laboratory Diagnosis of Mycobacterium tuberculosis Infection

Laboratory Diagnosis of Mycobacterium tuberculosis Infection

Mycobacterium tuberculosis (MTB) is the causative agent of tuberculosis (TB) in humans. It is a slightly curved rod arranged singly or in groups. Mycobacterium tuberculosis grows very slowly, taking...

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link to Löwenstein–Jensen (LJ) Medium: Preparation, Uses

Löwenstein–Jensen (LJ) Medium: Preparation, Uses

M. tuberculosis requires aerobic conditions and a protein-enriched medium for culture. Löwenstein–Jensen (LJ) slopes are the main solid media used to culture Mycobacteria. It contains inspissated...

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link to GeneXpert MTB/RIF Assay

GeneXpert MTB/RIF Assay

GeneXpert IV System  GeneXpert MTB/RIF assay is a rapid diagnostic test of tuberculosis (TB) and drug resistance. It is revolutionizing TB control with aids in prompt diagnosis and...

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link to Tuberculin Skin Test (Mantoux test): Principle, Procedure, Results

Tuberculin Skin Test (Mantoux test): Principle, Procedure, Results

The Mantoux tuberculin skin test is the standard method of determining whether a person is infected with Mycobacterium tuberculosis or has exposure to tubercle bacilli. Koch developed it in 1890, but...

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link to Tween 80 Hydrolysis Test: Principle, Procedure, Results

Tween 80 Hydrolysis Test: Principle, Procedure, Results

Tween 80 is the trade name of the detergent polyethylene derivative of sorbitan mono-oleate. Some Mycobacterium species possess an enzyme-lipase, that splits the compound and releases oleic acid and...

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link to Atypical Mycobacterial Infections

Atypical Mycobacterial Infections

Atypical mycobacterial infections caused by a species of mycobacterium other than M. tuberculosis complex,  the causative bacteria of pulmonary TB and extrapulmonary TB including...

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