Abstract
1 Laboratory Bacteriology Research (LBR), Department of Clinical Chemistry, Microbiology and Immunology, Ghent University Hospital, 9000 Gent, Belgium
2 Centre of Epidemiology and Microbiology, National Institute of Public Health, 100 42 Prague, Czech Republic
3 Department of Infectious Diseases, Leiden University Medical Center C5-P, PO Box 9600, 2300 RC Leiden, The Netherlands
4 Department of Medical Microbiology, Malmö University Hospital, University of Lund, S-205 02 Malmö, Sweden
5 Kerry Group, Kerry 1327 AH Almere, The Netherlands
6 Department of Evolutionary Biology, University of Firenze, I-50125 Firenze, Italy