[1] Publ Hlth Agcy Canada, Ctr Immunizat & Resp Infect Dis, Ottawa, ON, Canada
[2] Univ Montreal, Dept Med Sociale & Prevent, Montreal, PQ, Canada
[3] STAT Canada, Hlth Anal Div, Ottawa, ON, Canada
[4] Inst Natl Sante Publ Quebec, Quebec City, PQ, Canada
[5] Publ Hlth Ontario, Toronto, ON, Canada
[6] Univ Toronto, Dalla Lana Sch Publ Hlth, Toronto, ON, Canada
[7] Inst Clin Evaluat Sci, Toronto, ON, Canada