ID#: 13372
This photomicrograph of a Ziehl-Neelsen stained sputum smear, revealed the presence of Mycobacterium tuberculosis bacteria. The Ziehl-Neelsen technique is used for staining acid-fast bacteria, implementing a carbol-fuchsin solution, while decolorizing in acid alcohol, and counterstaining with methylene blue. Mycobacteria have waxy coated cell walls, which prevents Gram-staining.
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Content Provider(s): CDC
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CDC Organization
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Copyright Restrictions: None - This image is in the public domain and thus free of any copyright restrictions.