1. Division of Gene Technology; Katholieke Universiteit Leuven; Kasteelpark Arenberg 21 - box 2462 3001 Leuven Belgium
2. Department of Microbiology and Immunology; Katholieke Universiteit Leuven; Minderbroedersstraat 10 - box 1030 3000 Leuven Belgium
3. Department of Microbial and Molecular Systems; Katholieke Universiteit Leuven; Kasteelpark Arenberg 22 - box 2457 3001 Leuven Belgium
4. Centre for the Study of Biological Complexity; Virginia Commonwealth University; 1000 West Cary Street - room 333 Richmond VA 23284 USA
5. Bacterial Diseases Division; Scientific Institute of Public Health (WIV-ISP); J. Wytsmanstraat 14 1050 Brussels Belgium