Communication Challenges in CBRN Terrorism Crises: Expert Perceptions

The Effect of Risk Communication on Public Behavior to Non-Conventional Terrorism-Randomized Control Trial

Non-conventional terrorism (NCT) incorporates an extended dimension of uncertainty that can lead to fear among the public. Health officials have an unsubstantiated assumption that thousands will seek treatment in hospitals following NCT. This study aims to examine public behavioral intentions in the case of NCT and the effect of risk communication on intents. An online randomized controlled trial was conducted among 1802 adult participants in Israel. Threat perception and behavioral intent before and after exposure to hypothetical NCT scenarios were assessed stratified to the type of media, exposure to rumors, and risk communication. The majority (~64%) of participants are aware of the NCT threat. Almost half (45%) of participants indicated a "high" or "very high" chance of seeking medical attention following an NCT incident. Regression analysis suggests that the odds of participants exposed to risk communication to report an elevated intent of seeking medical attention were 0.470 (95% CI: 0.359, 0.615) times that of participants not exposed to risk communication, χ² = 30.366, p < 0.001. The findings demonstrate the importance of effective risk communication in reducing undesired public behavior during NCT crises. Efforts must be invested to create a robust risk communication infrastructure to allow the proper management of possible NCT incidents.

Radiobiological and social considerations following a radiological terrorist attack; mechanisms, detection and mitigation: review of new research developments

PURPOSE

This review focuses on recent research in understanding the different aspects of what society should expect from a radiological attack. Although some scenarios of a radiologic event can be impossible to be prepared for, the effort put toward educating and better preparing for these types of events can help minimize some of the issues. The different areas discussed in this review include radioisotopes of concern, detection of radiation dose, biological effects of ionizing radiation exposures, low dose effects, targeted and non-targeted effects (NTE), psychological effects, mitigations, with a brief mention of other considerations such as medical preparedness, communication, policy implications and ethical issues. This review also discusses solutions to rectify the issues faced at hand that may come up in the event of a radiologic terrorist attack.

CONCLUSIONS

A review of recent work in the area shows that a multi-layered and interdisciplinary approach is needed to prepare for a radiological terrorist attack. As well as medical preparedness, the approach needs to include sociological and psychological planning as well as an understanding of ethical issues. Since the likely 'dirty bomb' scenarios may involve low dose exposures to high numbers of people, a much better theoretical and practical understanding of low dose radiobiology and the development of robust low dose exposure biomarkers is needed as part of an integrated plan.

A Conceptual Model for Evaluating Emergency Risk Communication in Public Health

Public health threats, such as emerging infectious diseases, terrorism, environmental catastrophes, and natural disasters, all require effective communication. Emergency risk communication is a critical component of public health emergency planning and response. It is a complex process involving a variety of constructs that interact in dynamic ways over time. While emergency risk communication is generally recognized as an important tool for risk management and emergency response, the specific elements, processes, and outcomes are not well described and have not been systematically assessed. In this article, we describe a conceptual model for public health developed in collaboration with the Centers for Disease Control and Prevention (CDC). We propose using this model to inform practice and to guide evaluations of emergency risk communication. The model was informed by an extensive review of the emergency risk communication literature, interviews with researchers, and discussions with CDC stakeholders. This model can be adapted for a wide range of emergency events and incorporates key constructs to assess internal processes, as well as outcomes of emergency risk communication on audiences. Evaluating internal processes can help identify and correct messaging deficiencies. Outcome constructs describe expected target audience responses to emergency risk communication, such as changes in knowledge, attitudes, beliefs, and behaviors that may occur over time. This can help public health communicators learn how their various activities contribute to emergency risk communication outcomes.