Wa1F1-KT was tested by an agar diffusion assay against the reference C. lusitaniae NEQAS 6208 strain and clinical isolates and laboratory strains of C. albicans and C. glabrata susceptible or resistant to fluconazole. The results showed that, when tested at 25 °C, Wa1F1-KT was active towards both fluconazole-susceptible and -resistant strains of C. glabrata, with some quantitative differences (Table 1). Wa1F1-KT showed no effect against the reference C. albicans SC5314 strain and against two fluconazole-susceptible clinical isolates (DSY347 and DSY544) and the DSY544-derived fluconazole-resistant mutant strain (DSY775) of C. albicans. On the contrary, a good effect was detected against the DSY347-derived fluconazole-resistant mutant C. albicans DSY289 strain. No effect against any of the tested strains was detected when the assay was carried out at 30 and 37 °C.