1. Service Immunology, O.D. Communicable & Infectious Diseases, Scientific Institute of Public Health (Site Ukkel), Engelandstraat 642, B-1180 Ukkel, Belgium
2. Department
of Sustainable Organic Chemistry and Technology, Faculty of Bioscience
Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
3. Service
Toxicology, O.D. Public Health and Surveillance, Scientific Institute
of Public Health (Site Elsene), J. Wytsmanstraat 14, B-1050 Brussels, Belgium
4. Program Tuberculosis and Mycobacteria, Service Bacterial Diseases, O.D. Communicable & Infectious Diseases, Scientific Institute of Public Health (Site Ukkel), Engelandstraat 642, B-1180 Ukkel, Belgium
5. Department
of Biomedical Sciences, Antwerp University, Universiteitsplein 1, B-2610 Wilrijk, Belgium