[1] Dept Hlth, Communicable Dis Control Directorate, Perth, WA, Australia
[2] Univ Notre Dame, Sch Med, Fremantle, WA, Australia
[3] Univ Notre Dame, Inst Hlth Res, Fremantle, WA, Australia
[4] Murdoch Univ, Murdoch, WA, Australia
[5] Edith Cowan Univ Joondalup, Joondalup, Australia
[6] Univ Notre Dame, Sch Nursing, Fremantle, WA, Australia