1. Victorian Infectious Diseases Service, Royal Melbourne Hospital, Melbourne, VIC.
2. The Northern Hospital, Melbourne, VIC.
3. Victorian Infectious Diseases Reference Laboratory, Melbourne, VIC.
4. Department of Medicine, Austin Health and Northern Health, University of Melbourne, Melbourne, VIC.
5. Royal Darwin Hospital, Darwin, NT.
6. Menzies School of Health Research, Darwin, NT.
7. Faculty of Health Sciences, Curtin University, Melbourne, VIC.
8. Burnet Institute, Melbourne, VIC.
9. School of Pathology and Laboratory Medicine, University of Western Australia, Perth, WA.
10. Investigation, Response and Policy Planning and Information Sections. Communicable Disease Prevention and Control, Department of Health, Victoria, Melbourne, VIC.