Table 5. The MIC range, MIC50, MIC90, and geometric mean for all 493 C. neoformans isolates for seven antifungals according to clinical and environmental origin of isolates.
Isolates | Antifungal agent | MIC | |||
Range | MIC50 | Geometric Mean | MIC90 | ||
All C. neoformans isolates (n = 493) | Amphotericine B | 0.063–1 | 0.25 | 0.251 | 0.5 |
5-Flucytosine | <0.063–>64 | 4 | 3.483 | 8 | |
Fluconazole | 0.125–32 | 2 | 2.294 | 4 | |
Itraconazole | <0.016–0.5 | 0.063 | 0.063 | 0.25 | |
Voriconazole | <0.016–0.5 | 0.063 | 0.049 | 0.125 | |
Posaconazole | <0.016–0.5 | 0.063 | 0.061 | 0.125 | |
Isavuconazole | <0.016–0.125 | 0.031 | 0.027 | 0.063 | |
Isolates from HIV-positive patients (n = 236) | Amphotericine B | 0.063–1 | 0.25 | 0.236 | 0.5 |
5-Flucytosine | <0.063–>64 | 4 | 3.816 | 8 | |
Fluconazole | 0.125–32 | 2 | 2.532 | 4 | |
Itraconazole | <0.016–0.5 | 0.063 | 0.062 | 0.25 | |
Voriconazole | <0.016–0.5 | 0.063 | 0.055 | 0.125 | |
Posaconazole | <0.016–0.5 | 0.063 | 0.062 | 0.125 | |
Isavuconazole | <0.016–0.125 | 0.031 | 0.025 | 0.063 | |
Isolates from HIV-negative patients (n = 156) | Amphotericine B | 0.063–1 | 0.25 | 0.253 | 0.5 |
5-Flucytosine | 0.25–32 | 4 | 3.091 | 8 | |
Fluconazole | 0.125–16 | 2 | 2.072 | 4 | |
Itraconazole | <0.016–0.25 | 0.063 | 0.057 | 0.125 | |
Voriconazole | <0.016–0.25 | 0.063 | 0.036 | 0.125 | |
Posaconazole | <0.016–0.25 | 0.063 | 0.054 | 0.125 | |
Isavuconazole | <0.016–0.125 | 0.031 | 0.024 | 0.063 | |
Clinical isolates from Thailand and Japan (n = 68) | Amphotericine B | 0.063–0.5 | 0.25 | 0.291 | 0.5 |
5-Flucytosine | 0.5–8 | 4 | 3.433 | 8 | |
Fluconazole | 0.25–32 | 2 | 2.452 | 4 | |
Itraconazole | <0.016–0.25 | 0.063 | 0.058 | 0.125 | |
Voriconazole | <0.016–0.5 | 0.063 | 0.070 | 0.125 | |
Posaconazole | <0.016–0.125 | 0.063 | 0.057 | 0.125 | |
Isavuconazole | <0.016–0.125 | 0.031 | 0.026 | 0.063 | |
Environmental isolates from Thailand and Japan | Amphotericine B | 0.125–0.5 | 0.25 | 0.286 | 0.5 |
(n = 67) | 5-Flucytosine | 0.063–8 | 4 | 2.933 | 4 |
Fluconazole | 0.125–8 | 2 | 2.106 | 4 | |
Itraconazole | <0.016–0.5 | 0.125 | 0.095 | 0.25 | |
Voriconazole | <0.016–0.125 | 0.063 | 0.055 | 0.125 | |
Posaconazole | <0.016–0.25 | 0.125 | 0.090 | 0.125 | |
Isavuconazole | <0.016–0.063 | 0.063 | 0.039 | 0.063 |