1. Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne
2. Microbiology Laboratory, Canton Hospital of Fribourg, Fribourg
3. Analysa Laboratory, Yverdon-les-Bains
4. Polyanalytic Laboratory, Lausanne
5. Central Institute of the Valais Hospitals, Sion
6. Institute of Microbiology of Neuchâtel, La Chaud-de-Fonds
7. Jura Hospital Laboratory, Porentruy, Switzerland
8. French National Reference Center for Staphylococci, University of Lyon, Lyon, France