1. Institute of Hygiene, University Hospital Münster, Münster, Germany
2. Institute of Medical Microbiology, University Hospital Münster, Münster, Germany
3. Division of lnfection and lmmunity, University College London, London, United Kingdom
4. Faculty of Behavioural Sciences, University of Twente, Enschede, the Netherlands
5. Infection Control Program, University of Geneva Hospitals and Medical School, Geneva, Switzerland
6. Department of Medical Microbiology and Infection Control, VU University Medical Centre, Amsterdam and Amphia Hospital Molengracht, Breda, the Netherlands
7. Robert Koch Institute, Department for Infectious Diseases, Berlin, Germany
8. Department for Microbiology and Infection Control for Microbiological Surveillance and Research, Statens Serum Institut, Copenhagen, Denmark
9. European Centre for Disease Prevention and Control, Stockholm, Sweden
10. Division of Infectious Diseases, Department of Internal Medicine I, University Hospital Tübingen, Tübingen, Germany
11. Robert Koch Institute, Reference Centre for Staphylococci, Wernigerode, Germany
12. Department of Medical Microbiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands