TABLE 2.
Results of the GLABRATA RTT test on 330 yeast strains grown in subcultures on three chromogenic agar media and on Sabouraud gentamicin chloramphenicol agar
| Strain | No. of strains tested (n = 330) | No. of strains identified as C. glabrataa with the GLABRATA RTT test according to the indicated subculture medium
|
|||
|---|---|---|---|---|---|
| Candida ID (Biomerieux) | CHROMagar Candida (Becton Dickinson) | CandiSelect (Bio-Rad) | Sabouraud chloramphenicol gentamicin agar (Biomerieux) | ||
| Candida glabrata | 100 | 98 | 94 | 98 | 98 |
| Non-Candida glabrata species | 230 | 5 | 3 | 6 | 3 |
| Candida tropicalis | 42 | 2 | 1 | 1 | 1 |
| Candida famata | 17 | 2 | 2 | 4 | 2 |
| Candida lusitaniae | 14 | 1 | 0 | 1 | 0 |
| Other speciesb | 157 | 0 | 0 | 0 | 0 |
a
C. glabrata strains are trehalase positive and maltase negative. Sensitivity values for Candida ID, CHROMagar Candida, CandiSelect, and Sabouraud chloramphenicol gentamicin agar were 98, 94, 98, and 98%, respectively; specificity values were 97.8, 98.6, 97.3, and 98.6%, respectively.
b
C. albicans (n = 30), C. parapsilosis (n = 28), C. krusei (n = 28), C. dubliniensis (n = 18), C. guilliermondii (n = 16), Saccharomyces cerevisiae (n = 14), C. kefyr (n = 10), C. inconspicua (n = 4), C. lipolytica (n = 3), C. norvegensis (n = 3), C. pelliculosa (n = 2), and C. utilis (n = 1).