1. Leptospira Laboratory, Institute Pasteur, BP 61 98846 Noumea Cedex, New Caledonia
2. Microbiology Institute of the University of Lausanne, 44 Bugnon St, CH-1011 Lausanne, Switzerland
3. Institute of Animal Zoology and Ecology, University of Lausanne, Switzerland
4. WHO Collaborating Centre for Leptospirosis, Medical and Molecular Bacteriology Unit, Institute Pasteur, Paris, France