| Neelsen, Friedrich | <person> German pathologist, 1854-1894. See: Ziehl-Neelsen stain. (05 Mar 2000) |
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| Ziehl-Neelsen stain | <technique> A method for staining acid-fast bacteria using Ziehl's stain, decolorizing in acid alcohol, and counterstaining with methylene blue; acid-fast organisms appear red, other tissue elements light blue; a modification of this stain is also used for Actinomycetes and Brucella. (05 Mar 2000) |
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