1. Special Pathogens, National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Manitoba, Canada
2. Vaccine and Gene Therapy Institute, Oregon Health & Science University, Portland, Oregon, USA
3. Oregon National Primate Research Center, Oregon Health & Science University, Portland, Oregon, USA
4. Vaccine Safety Surveillance, Immunization Branch, Public Health Agency of Canada, Ottawa, Ontario, Canada
5. Rocky Mountain Veterinary Branch, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana, USA
6. Department of Medical Microbiology and Infectious Diseases, University of Manitoba, Winnipeg, Manitoba, Canada