1. Laboratory of Environmental Microbiology, National Public Health Institute,1
2. Institute of Biotechnology, University of Helsinki,2 and
3. Department of Pathology and Field Research, National Veterinary and Food Research Institute,3 Helsinki, Finland;
4. Bacteriological and Virological Laboratory, Careggi Hospital, Florence, Italy4; and
5. Laboratoire de Référence des Mycobactéries, Institut Pasteur, Paris, France5
6. Department of Dermatology, Kuopio University Hospital,6 and
7. Department of Clinical Microbiology, Kuopio University Hospital,7Kuopio, and