- Patients with uncontrolled infections as assessed by the principal investigator only. For bacterial infections, patients must be receiving definitive therapy and have no signs of progressing infection for 72 hours prior to starting conditioning. For fungal infections patients must be receiving definitive systemic antifungal therapy and have no signs of progressing infection for 1 week prior to enrollment. Progressing infection is defined as hemodynamic instability attributable to sepsis or new symptoms, worsening physical signs or radiographic findings attributable to infection. Persisting fever without other signs or symptoms will not be interpreted as progressing infection.