Abstract
1 International Reference Laboratory of Mycobacteriology and National Center for Antimicrobials and Infection Control, Statens Serum Institut, Artillerivej 5, DK-2300 Copenhagen, Denmark
2 Department of Pediatrics, Aarhus University, Brendstrupgaardsvej, Skejby Hospital, DK-8200 Aarhus N, Denmark
3 Department of Infectious Diseases, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, DK-2100 Copenhagen, Denmark
4 Laboratory of Environmental Microbiology, Department of Environmental Health, National Public Health Institute, PO Box 95, FI-70701 Kuopio, Finland
5 Department of Clinical Microbiology, Kuopio University Hospital, PO Box 1777, FI-70211 Kuopio, Finland
6 Mycobacteriology Reference Center, Microbiology Laboratory, Careggi Hospital, viale Morgagni 85, I-50134 Florence, Italy