1. University of Ottawa and Ottawa Hospital Research Institute, Ottawa, Ontario, Canada (L.C., J.B.A.)
2. Dalhousie University, Halifax, Nova Scotia, Canada (M.C.)
3. University of Ottawa, Ottawa, Ontario, Canada (L.E., J.W., S.J.)
4. National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Manitoba, Canada (K.A., N.B.)
5. National Microbiology Laboratory, Public Health Agency of Canada, and University of Manitoba, Winnipeg, Manitoba, Canada (G.P.)