Knowing how a risk is perceived is essential for preparing an effective plan for risk communication, and may be predictive of the public's response. In a study of the NSW population, Barr et al. [8] found that respondents with higher levels of risk perception reported more willingness to comply with public health behaviours in the event of an outbreak of influenza. Similar results were found in Hong Kong [9] and Italy [10] , where respondents in both studies with an increased perception of risk were more likely to be engaged in risk-reducing behaviours.