Studies on an interesting Saccharomyces carlsbergensis mutant

Summary 32 sputa from 29 patients known to have yeasts were emulsified and quantitatively plated on Sabouraud's glucose agar. Colony counts showed that the yeast flora varied from about 300 to about one million cells per ml of the specimen. Sputa collected at bed-side and plated within 2 hours gave lower counts than those received routinely. In the 28 specimens in which identification was carried outC. albicans was found in 23 as the only or the dominant species andC. tropicalis in 4; an unidentified species was present in one specimen.This work was supported by a Grant from the Medical Research Council, Ottawa, Canada.