TABLE 2.

Cutoff levels of the relative OD for end point determination of MIC-0 of zygomycete isolates by the XTT method at different time points, based on best agreement with the spectrophotometric and visual (CLSI) methods

DrugCutoff level (%)
6 h8 h12 h
Posaconazole4020a15
Voriconazole3020a15
Amphotericin B5510
  • a The 15% cutoff gave higher agreement with visual reading of MICs.