[1] Inst Natl Sante Publ Quebec, Direct Risques Biol & Sante Travail, Quebec City, PQ, Canada
[2] Univ Laval, CHU Quebec, Axe Malad Infect & Immunitaires, Ctr Rech, Quebec City, PQ, Canada
[3] Univ Alberta, Fac Nursing, Edmonton, AB, Canada
[4] Dalhousie Univ, Dept Pediat, Halifax, NS, Canada
[5] Univ Manitoba, Dept Community Hlth Sci, Winnipeg, MB, Canada
[6] Univ British Columbia, Sch Populat & Publ Hlth, Vancouver, BC, Canada
[7] Univ Waterloo, Sch Publ Hlth Sci, Waterloo, ON, Canada
[8] Dalhousie Univ, Sch Hlth Adm, Halifax, NS, Canada
[9] BC Childrens Hosp Res Inst, Vaccine Evaluat Ctr, Vancouver, BC, Canada
[10] Univ British Columbia, Dept Pediat, Vancouver, BC, Canada
[11] Univ Toronto, Dalla Lana Sch Publ Hlth, Toronto, ON, Canada