1. Department of Microbiology and Infectious Diseases, New South Wales Health Pathology, Nepean Blue Mountains Pathology Service, Penrith, New South Wales, Australia
2. Microbiology Department, New South Wales Health Pathology, St George Hospital, Kogarah, New South Wales, Australia
3. School of Medical Sciences, University of New South Wales, Sydney, New South Wales, Australia
4. Neonatal Intensive Care Unit, Nepean Hospital, Penrith, New South Wales, Australia
5. Department of Infectious Diseases and Microbiology, Royal Prince Alfred Hospital, Camperdown, New South Wales, Australia
6. The University of Sydney Medical School, Nepean Clinical School, Faculty of Medicine and Health, University of Sydney, Penrith, New South Wales, Australia
7. Microbiology Department, New South Wales Health Pathology, Prince of Wales Hospital, Randwick, New South Wales, Australia