1. Quebec Heart and Lung Institute Research Centre, Quebec City, Canada
2. Department of Social and Preventive MedicineLaval University, Quebec City, Canada
3. Quebec Public Health Laboratory (Laboratoire de santé publique du Québec), Quebec National Institute of Public Health (Institut national de santé publique du Québec), Ste-Anne-de-Bellevue, Canada
4. Public Health DirectorateNunavik Regional Board of Health and Social Services, Kuujjuaq, Canada
5. Department of Microbiology and Infectious DiseasesUniversity of Sherbrooke, Sherbrooke, Canada
6. Etienne-Lebel Research Centre, Sherbrooke University Hospital, Sherbrooke, Canada