1. School of Public Health and Community Medicine, UNSW Sydney, Sydney, Australia.
2. National Center for Epidemiology and Population Health, Research School of Population Health, Australian National University, Canberra, Australia.
3. Center for Infectious Disease and Microbiology-Public Health, Westmead Hospital, Sydney, Australia.
4. Marie Bashir Institute for Infectious Diseases and Biosecurity, Sydney Medical School, The University of Sydney, Sydney, Australia.