1. Communicable Disease Control Directorate , Department of Health Western Australia, PO Box 6172, Perth Business Centre, Perth, WA 6849, Australia
2. National Centre for Epidemiology and Population Health , Australian National University, 62 Mills Road, Acton, Canberra ACT 2601, Australia
3. Global Health Program , The Kirby Institute, Level 6, Wallace Wurth Building, High Street, University of New South Wales, Sydney, Kensington NSW 2052, Australia
4. Department of Microbiology , PathWest Laboratory Medicine Western Australia, QE2 Medical Centre, Locked Bay 2009, Nedlands, WA, 6909, Australia
5. School of Biomedical Sciences , University of Western Australia, 35 Stirling Highway, Perth, WA 6009, Australia
6. School of Medicine , University of Western Australia, 35 Stirling Highway, Perth, WA 6009, Australia