All strains of C. albicans were cultured at 37°C with aeration in 5 ml of YPD [yeast extract (10 g/liter; VWR J850-500G), peptone (20 g/liter; VWR J636-500G), and dextrose (20 g/liter; VWR BDH9230-500G)] broth. For in vivo mouse experiments, C. albicans strains were grown static overnight in 10 ml of YPD. The selection of the urinary clinical strains tested in this study was based on high fungal burden during isolation (~106 to 108 CFU/ml) and infections developed at different time points and urinary tract sites. Pt62 was recovered from a patient that had a catheter for 1 day. Pt65 was recovered from a patient that had a catheter for 6 days. PCNL1 is a kidney stone clinical isolate from a catheterized patient with a C. albicans kidney infection.