1. Zoonoses Division, Centre for Food-Borne, Environmental and Zoonotic Infectious Diseases, Public Health Agency of Canada, Ottawa, Ontaria, Canada
2. Department of Biology and Biochemistry, University of Bath, Bath, United Kingdom
3. Department of Infectious Disease Epidemiology, Imperial College London, St. Mary's Hospital, London, United Kingdom
4. Zoonoses and Special Pathogens Division, Public Health Agency of Canada, National Microbiology Laboratory, Winnipeg, Manitoba, Canada
5. Department of Microbiology and Immunology, New York Medical College, Valhalla, New York