1. Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Parkville, Victoria, Australia
2. Microbiological Diagnostic Unit Public Health Laboratory, Department of Microbiology and Immunology at the Peter Doherty Institute for Infection and Immunity, University of Melbourne, Parkville, Victoria, Australia
3. Melbourne Sexual Health Centre, Alfred Health, Carlton, Victoria, Australia
4. Central Clinical School, Monash University, Melbourne, Victoria, Australia