1. Research and Surveillance Group on TB, Leprosy and ARI; Institute of Tropical Medicine Pedro Kourí; Havana Cuba
2. Epidemiology and Disease Control Unit; Department of Public Health; Institute of Tropical Medicine; Antwerp Belgium
3. National Reference Laboratory for TB and Mycobacteria; Institute of Tropical Medicine Pedro Kourí; Havana Cuba
4. Department of Public Health; Faculty of Medicine; Ghent University; Ghent Belgium