<unk>  is a stain used in clinical microbiology and histology to identify tuberculosis mycobacteria. There are two types of<unk> s, 1 and 2 to stain mycobacterium species and cryptosporidium respectively. Both are fluorescent stains. The bacteria or the parasites appear brilliant greenish yellow against dark background. Mycolic acids of the mycobacteria keep this stain when decolorising with the acid alcohol. The method is more rapid and sensitive than ZN technique.
Auramine phenol stain
Wayson stain
Romanowsky stain
Alcian blue stain
Bielschowsky stain
Feulgen stain
Grocott's methenamine silver stain
Mucicarmine stain