Full text loading...
Chapter 9.4 : Special Stains for Coccidia and Microsporidia
Cryptosporidium and Cystoisospora (Isospora) species have been recognized as causes of severe diarrhea in immunocompromised hosts, but they can also cause diarrhea in immunocompetent hosts. Oocysts in clinical specimens may be difficult to detect without special staining. Cyclospora cayetanensis has also been reported to be acid fast. Modified acid-fast stains are recommended for demonstrating these organisms. Unlike the Ziehl-Neelsen modified acid-fast stain, the modified Kinyoun acid-fast stain does not require heating the reagents used for staining and uses a mild decolorizer ( 1 – 3 ).