Biofilm production by C. parapsilosis. Biofilm production following 24 h incubation at 30°C in inducing medium by C. parapsilosis isolates obtained from different geographical areas (A) and different anatomical sites (B). Liquor stands for cerebrospinal fluid. Number of biofilm producing isolates (P) versus non producers (NP) were compared using Fisher's exact test. A P value < 0.05 was considered statistically significant. I = Italy, NZ = New Zealand, RA = Argentina, H = Hungary.