1. Department of Medical Microbiology and Hygiene, Gärtner and Colleagues Laboratories, Elisabethenstrasse 11, 88212 Ravensburg, Germany
2. Department of Medical Microbiology, Labor Clotten, Bismarckallee 10, 79098 Freiburg/Breisgau, Germany
3. National Microbiology Laboratory, Public Health Agency of Canada, 1015 Arlington Avenue, Winnipeg, R3E 3R2, Manitoba, Canada
4. Department of Medical Microbiology and Hygiene, University of Ulm, Robert-Koch-Strasse 10, 89075 Ulm, Germany