[1] Univ New South Wales, Sch Publ Hlth & Community Med, Samuels Ave, Kensington, NSW 2033, Australia
[2] Inst Natl Sante Publ Quebec, Direct Risques Biol & Sante Travail, Quebec City, PQ, Canada
[3] Univ Laval, Axe Malad Infect & Immunitaires, Ctr Rech, CHU Quebec, Quebec City, PQ, Canada
[4] Royal Childrens Hosp, Dept Gen Med, Melbourne, Vic, Australia
[5] Univ Melbourne, Dept Paediat, Melbourne, Vic, Australia
[6] Murdoch Childrens Res Inst, Vaccine & Immunisat Res Grp, Parkville, Vic, Australia
[7] La Trobe Univ, Sch Psychol & Publ Hlth, Ctr Hlth Commun & Participat, Bundoora, Vic, Australia
[8] Univ Melbourne, Fac Med Dent & Hlth Sci, Melbourne, Vic, Australia