1. The Children's Hospital at Westmead, Sydney
2. Virology Research Laboratory, Virology Division
3. School of Women’s and Children’s Health
4. Area Serology Laboratory, Department of Microbiology, South Eastern Area Laboratory Services, Prince of Wales Hospital, Randwick
5. Schools of Medical Sciences, Biochemistry and Biomedical Sciences, University of New South Wales, Kensington, New South Wales, Australia