aChildren's Cancer Centre, Royal Children's Hospital

bDepartment of Paediatrics, University of Melbourne

cMurdoch Children's Research Institute

dAllergy and Immunology, Royal Children's Hospital

eInfection Diseases Unit, Department of General Medicine, Royal Children's Hospital, Parkville

fDepartment of Infectious Diseases, Peter MacCallum Cancer Centre, Melbourne

gNHMRC National Centre for Infections in Cancer, Sir Peter MacCallum Department of Oncology, University of Melbourne

hThe Paediatric Integrated Cancer Service

iRespiratory and Sleep Medicine, Royal Children's Hospital, Parkville, Australia

Correspondence to Gabrielle M. Haeusler, A/Prof, Murdoch Children's Research Institute, Flemington Rd, Parkville, Australia 3052. Tel: +61393481391; e-mail: [email protected]