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Tag: Acid-Fast Bacillus Smear and Culture and Sensitivity

Z.N Stain (Ziehl-Neelsen Stain)

Ziehl-Neelsen Stain (ZN-Stain) : Principle, Procedure, Reporting and Modifications

The Ziehl-Neelsen (ZN) method of the Acid Fast staining technique is used to stain Mycobacterium species, including M. tuberculosis, M. ulcerans and M. leprae, and non-tuberculous mycobacteria (NTM). Detection of acid-fast bacilli (ARB) in microscopically examined acid-washed and stained smears can provide initial bacteriological evidence for the presence of mycobacteria in a clinical specimen. Smear microscopy is the fastest and easiest procedure that can be performed. The cell wall of mycobacteria contains a high concentration […]

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