1. Department of Infectious Diseases and Immunology, John Hunter Hospital, Newcastle, NSW, Australia
2. Global and Tropical Health Division, Menzies School of Health Research and Charles Darwin University, Darwin, NT, Australia
3. School of Medicine and Public Health, University of Newcastle, Newcastle, NSW, Australia
4. School of Medicine, University of New South Wales, Sydney, NSW, Australia
5. Department of Infectious Diseases, Alfred Hospital, Melbourne, VIC, Australia
6. Department of Oncology, Calvary Mater Hospital, Newcastle, NSW, Australia