1. Department of Infectious Diseases Blacktown Hospital Sydney New South Wales Australia
2. Centre for Infectious Diseases and Microbiology, Westmead Hospital and Marie Bashir Institute for Infectious Disease and Biosecurity University of Sydney Sydney New South Wales Australia
3. Centre for Infectious Diseases and Microbiology Westmead Hospital, University of Sydney Sydney New South Wales Australia
4. John Hunter Hospital University of Newcastle Newcastle New South Wales Australia
5. School of Medicine and Public Health University of Newcastle Newcastle New South Wales Australia