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Description:Using the Ziehl-Neelsen staining technique, this photomicrograph reveals the presence of Mycobacterium tuberculosis bacteria in a sputum smear.
Ziehl-Neelsen technique is used for staining acid-fast bacteria using a carbol-fuchsin solution, decolorizing in acid alcohol, and counterstaining with methylene blue. Mycobacteria, have waxy coated cell walls which prevents Gram-staining.
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Content Providers(s):CDC
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Links:CDC - National Center for HIV, STD and TB Prevention - Div. of TB Elimination
CDC Organization
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Copyright Restrictions:None - This image is in the public domain and thus free of any copyright restrictions. As a matter of courtesy we request that the content provider be credited and notified in any public or private usage of this image.