Stain which differentiates cryptococcus from other fungus ?: (A) Gram Stain, (B) Wright-Giemsa, (C) India ink, (D) Toluidine blue
Answer is C. Ans. is 'c' i.e., India ink Unstained wet preperations of CSF mixed with drop of India ink or nigrosine demonstrate the capsule as a clear halo. Methenamine silver or periodic acid-Schiff are used for staining a tissue sample.