title: Acridine orange as a fluorescent counterstain with the auramine acid-fast stain.
mesh_terms: D000166:Acridines; D005453:Fluorescence; D006801:Humans; D008722:Methods; D009169:Mycobacterium tuberculosis / Q000166:cytology* / Q000302:isolation & purification; D013183:Sputum / Q000382:microbiology; D013194:Staining and Labeling
chemical_list: D000166:Acridines