1. Canadian Field Epidemiology Program, Public Health Agency of Canada, 100 Colonnade Drive, Ottawa, ON, Canada
2. Directorate of Force Health Protection, Canadian Forces Medical Group Headquarters, Carling Campus, 101 Colonel By Drive, Ottawa, ON, Canada
3. National Microbiology Laboratory, Public Health Agency of Canada, 1015 Arlington St, Winnipeg, MB, Canada
4. Laboratoire de santé publique du Québec, 20045 Sainte Marie Rd, Sainte-Anne-de-Bellevue, QC, Canada