Last updated on July 4th, 2021Mycobacterium 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 up […]
Last updated on June 21st, 2021M. 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 eggs, malachite green, and […]
Last updated on July 4th, 2021GeneXpert 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 treatment (selection of appropriate TB regimen). […]
Last updated on June 2nd, 2021The Mantoux tuberculin skin test is the standard method of determining whether a person is infected with Mycobacterium tuberculosis or has exposure to tubercle bacilli. It was developed by Koch […]
Last updated on June 21st, 2021Atypical mycobacterial infections caused by a species of mycobacterium other than M. tuberculosis complex, the causative bacteria of pulmonary TB and extrapulmonary TB including cutaneous TB; and Mycobacterium leprae, the cause of […]
Last updated on June 11th, 2021Ziehl-Neelsen (ZN) method of acid-fast staining technique is used to stain Mycobacterium species including M. tuberculosis, M. ulcerans, and M. leprae and nontuberculous mycobacteria (NTM). Detection of acid-fast bacilli (AFB) […]
Last updated on June 4th, 2021Sodium hypochlorite centrifugation technique is used to concentrate the AFB present in sputum, as it increases the chances of detecting AFB in sputum smears. Sodium hypochlorite (NaOCl) is recommended for […]
Last updated on June 21st, 2021Various biochemical tests can be performed for the identification of Mycobacteria and Non-tuberculous Mycobacteria. An overview of some of these biochemical tests is mentioned in this blog post. Niacin accumulation […]
Last updated on June 23rd, 2021Leprosy is an age-old disease, associated with social stigma; historical records and literature show that people afflicted with leprosy have often been ostracized by their communities and families. Also known […]
Copyright © microbeonline
