[1] Queensland Univ Technol, Queensland Childrens Resp Ctr, Queensland Childrens Med Res Inst, Brisbane, Qld, Australia
[2] Charles Darwin Univ, Menzies Sch Hlth Res, Child Hlth Div, Darwin, NT, Australia
[3] Kuching Hosp, Dept Pediat, Sarawak, Malaysia
[4] Univ Malaysia Sarawak, Inst Hlth & Community Med, Kota Samarahan, Malaysia
[5] Univ Queensland, Queensland Childrens Med Res Inst, Brisbane, Qld, Australia
[6] Royal Childrens Hosp, Queensland Paediat Infect Dis Lab, Brisbane, Qld, Australia