1 Centre of Research Excellence in Reducing Healthcare Associated Infection, Institute of Health and Biomedical Innovation, Queensland University of Technology, School of Public Health and Social Work, Brisbane, QLD 4059, Australia.
2 Faculty of Nursing and Health, Avondale College of Higher Education, Wahroonga, NSW, Australia.
3 Centre of Research Excellence in Reducing Healthcare Associated Infection, Institute of Health and Biomedical Innovation, Queensland University of Technology, School of Public Health and Social Work, Brisbane, QLD 4059, Australia. Electronic address: L11.hall@qut.edu.au.