1. Department of Medical Microbiology and Infection Control, Franciscus Gasthuis & Vlietland, Rotterdam, the Netherlands
2. Department of Epidemiology, Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, the Netherlands
3. Department of Intensive Care Medicine, University Medical Center Utrecht, Utrecht University, the Netherlands
4. Department of Medical Microbiology, University Medical Center Utrecht, Utrecht University, the Netherlands