" Gram Negative Bacteria for bacteria stain: Gram + / Gram – bacteria and filaments of nocardia, etc. Stain results - Gram + Bacteria, Nocardia and Actinomyces Filaments: Blue, Gram – Bacteria, Nuclei: Red, Additional tissue elements: YellowNote: Also see the Taylor Modification of the Brown and Brenn +/- technique noted for the varying differentiation available. Over-differentiation in the B& - B sep 6 is a problem with some sections -run the control slides at varying rates to determine the amount for the specific organism.Brown J.H. and Brenn, L. Bull. Johns Hopkins Hosp., 48:69 (1931).AFIP Manual of Histologic Staining Techniques: 3rd. ed., ed. G. Luna -New York: McGraw-Hill Publications, c. 1968, p. 222."
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