Differential and enrichment media for selective culture and recognition of yeast species from clinical material.

An enrichment medium was developed and evaluated for isolation of fluconazole-resistant minority yeast species in a hospital setting. The enrichment medium was made by adding fluconazole (10 micrograms/ml) to yeast nitrogen base/glucose broth. Under laboratory conditions the broth permitted detection of 20 of 20 Candida krusei isolates and 20 of 20 Candida glabrata isolates in mixtures with Candida albicans even when the Candida albicans cells outnumbered those of the other species by 1000:1.

Salmonella typhimurium and Salmonella enteritidis: changing epidemiology from 1973 until 1992.

A retrospective analysis, covering a period of 20 years, of 2049 primo-isolates of Salmonella typhimurium and 343 primo-isolates of Salmonella enteritidis was performed at our laboratory. In 1991, S. enteritidis (43.