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The purpose of the study is to provide insights on the COVID-19 pandemic communication from the lessons learned by health communication executives—how they perceived the COVID-19 pandemic and recommend preparing for communication management of future public health crises.

A number of top health communication executives in the United States, who worked in the healthcare industry for at least 25 years and held titles like director, president and chief strategist, were interviewed for their unique perspectives on the COVID-19 pandemic. This study used the contingency theory of strategic conflict management for qualitative deductive analysis of the following segmentations of key factors that drove organizational communication management decision making during the pandemic: organization characteristics, relationship characteristics, general external climate, external publics and the issue under question.

Health communication executives heavily relied on their past health communication experiences, which led to nuanced understandings of the COVID-19 pandemic. Practically, the health communication executives urged future practitioners to constantly assess risks, hire and use diverse and representative decision-makers; set a communication protocol; and keep the communication in perspective. Theoretically, the contingency theory is furthered—there appears to be a theoretical linkage between the construct of general external climate and the construct of the external public.

The unique perspectives of top health communication executives, based in the United States, provided in-depth insights on the COVID-19 pandemic—its nuances, challenges and main influences (e.g. political, racial, etc.). These takeaways and recommendations can be adapted by other organizations and future health communicators in other parts of the world.

Despite a ravaging pandemic worldwide, Vietnam managed to contain the local outbreak, partly owing to its carefully implemented risk communications campaign. This chapter investigated the effectiveness of official Vietnam government communications, the sentiment of foreign media reporting on Vietnam, and any challenges. Content analysis was applied to samples from government communications (43 samples); international articles (46); and social media conversations (33). Official government communications were quite accurate, timely, and effective in displaying transparency, employing war symbolism, and shared responsibility, but should more clearly separate between state and expert, offer differing views, and highlight the benefits of compliance. International articles praised the government's viral PSA TikTok video, its transparency, and the netizens' nationalist narratives. While some evidence was found for infodemic, blaming, and heroization, the sample was too small to be conclusive. Future studies should expand the timeframe to a longer duration, quantitatively appraise a wider sampling of social media conversations, and possibly conduct primary interviews with experts, policy makers, and the public.

COVID-19 presents a serious and unprecedented challenge around the globe. Street vendors are the most vulnerable group during this pandemic regarding livelihood loss and contagion risk. This research aims to examine the roles of risk communication work in enhancing COVID-19 risk perceptions and adoption of COVID-19 preventive behaviors among street vendors.

The data were collected from the street vendors in urban Vietnam. A binary probit model was used for analyzing the relationships among exposure to risk communication, risk perception and adoption of preventive behaviors.

The analysis reveals the outreach of risk communication work to the street vendors. A rather large proportion of the respondents perceive high risks associated with COVID-19. All respondents adopt COVID-19 preventive behaviors; however, the proportion of regular adoption is moderate and even very low for most behaviors. Their frequent exposure to risk communication significantly raises their risk perceptions and encourages their regular adoption of preventive behaviors, particularly regarding the measures that are affordable and less detrimental to their livelihood.

This research is among the first attempts to examine risk communication to the vulnerable group, how they perceive risks and the extent to which they adopt preventive behaviors during a public health crisis. This research draws some implications for risk communication and social welfare policies to obtain sustainable development goals.

The purpose of the study is to explore the suitability of social media influencers (SMIs) for communicating public health messages via social media platforms. The study identifies key persuasive communication components that influence individuals' attitudes and, subsequently, intentions to follow health-related information shared by SMIs.

Qualitative interviews with healthcare workers and interactions with 332 active social media users via structured online questionnaires were used for data collection. Structural equation modelling was used to analyse responses.

Results indicate that SMIs' credibility, SMI–individual homophily and quality of information shared by the SMI are the significant factors determining individuals' attitudes towards the information received. Furthermore, the individual's attitude significantly impacts their intention to follow information shared by the SMI. The study thus verifies the mediating role of attitude in persuasive communication.

The current study can serve as a foundation for future work to examine the suitability of SMIs for tasks other than marketing.

The study provides insights for planning and implementing SMI-sourced communication in the public health context. The study enhances the understanding of the tested relationships and thereby increases scholars' and practitioners' ability to leverage SMIs for health-related communication.

Whilst SMIs are attracting increasing attention in consumer markets, the study suggests that they can be used in public health communication. Considering the coronavirus disease (COVID-19) situation, the empirical study provides insights into SMIs' role in persuasive public health communication amid a health crisis.

The peer review history for the article is available at: https://publons.com/publon/10.1108/OIR-01-2021-0012

COVID-19 vaccinations face a backdrop of widespread mistrust in their safety and effectiveness, specifically via social media platforms which constitute major barriers for the public health sector to manage COVID-19 (and future) pandemics. This study provides a more nuanced understanding of the public's engagement behavior toward COVID-19 vaccinations.

Using Netnography, this study explores the public's interactions with vaccine communications by the WHO via Facebook. From WHO posts about the COVID-19 vaccination 23,726 public comments on Facebook were extracted and analyzed.

Building on crisis communication, health and engagement literature, this paper identifies and conceptualizes seven patterns of engagement behavior toward the COVID-19 vaccination and develops the first framework of relationships between these patterns and the extant vaccine attitudes: vaccine acceptance, hesitancy and refusal.

This paper helps policymakers identify and adapt interventions that increase vaccine confidence and tailor public health services communications accordingly.

This research offers the first typology of patterns of engagement behavior toward COVID-19 vaccinations and develops a framework of relationships between these patterns and the existing understanding in health literature. Finally, the study provides data-driven communication recommendations to public health service organizations.

The paper aims to contribute to the development of a systematic framework of analysis pertaining to the relationship between public health crisis (PHC) and scares and corporate communication practice. It aims to clarify the complex relationship between public health policy development and corporate crisis and risk communication issues.

Literature review in the fields of crisis communication, crisis and risk management and public health policy; the multidisciplinary approach provided principles for a framework of analysis.

The framework proposed identifies fields of intersection between governments, corporations, the media and the experts in the context of risk perception management providing inputs for both public health policy and corporate communication new developments.

The need for further research arises from the identification of the different areas of intersection between governments, corporations, the media and the experts and further elucidation of its dynamics should be pursued.

The framework builds a bridge between disciplines that have not been articulated for the practice inherent in public health and scares‐related communication issues. It proposes a multidisciplinary framework of analysis applicable to any type of PHC or scare.

During the COVID-19 pandemic, mass media play a vital role in containing the outbreak of the virus by quickly and effectively delivering risk communication messages to the public. This research examines the effects of risk communication exposure on public understanding and risk perception of COVID-19 and public compliance with health preventive measures.

Data from Vietnam during COVID-19 social distancing and path analysis model are used for empirical analysis.

This analysis finds that exposure to risk communication in mass media encourages public compliance directly and indirectly through the mediating roles of public understanding and risk perception. Further investigations also find that exposure to risk communication in both online media and traditional media facilitates public compliance. In addition, exposure to risk communication in online media only raises public risk perception, whereas exposure to risk communication in traditional media only raises public understanding.

This research implies that traditional and online media should be combined to increase the efficiency and effectiveness of government risk communication work.

This research is among the first attempts that examine the role of mass media (both traditional and online) in enhancing public compliance with preventive measures directly and indirectly through the mediating roles of public risk perception and understanding.

This study aims to explore public coping strategies with government-imposed lockdown restrictions (i.e. forced compliance) due to a health crisis (i.e. COVID-19). This directly impacts the public's power, as they may feel alienated from their environment and from others. Consequently, this study explores the relationships between the public's power, quality of life and crisis-coping strategies. This is important to help governments understand public discourse surrounding perceived government health crisis communication, which aids effective policy development.

An online questionnaire distributed via Qualtrics received 371 responses from the South African public and structural equation modelling was used to test the hypotheses.

The results indicate the public's experience of powerlessness and resulting information-sharing, negative word-of-mouth and support-seeking as crisis coping strategies in response to government-imposed lockdown restrictions.

The public's perspective on health crisis communication used in this study sheds light on adaptive and maladaptive coping strategies that the public employs due to the alienation they feel during a health crisis with government-forced compliance. The findings add to the sparse research on crisis communication from the public perspective in a developing country context and provide insights for governments in developing health crisis communication strategies. The results give insight into developing policies related to community engagement and citizen participation during a pandemic.

This study aims to explore the Facebook communication strategies of Spanish hospitals during health emergencies, focusing on their role in crisis management and public information dissemination.

Automatic topic modelling and deep learning sentiment analysis were applied to analyse 151,738 posts from 274 hospital Facebook pages (March 2020–Feb 2022). Regression analyses were used to explore the relationships between topics, sentiment scores and hospital characteristics.

The analysis revealed nine main topics, with the three most prevalent related to COVID-19: vaccine information, security measures and situational updates. This indicates that Spanish hospitals significantly relied on Facebook to manage the emergency. The communication strategies dynamically adapted to the intensity of the pandemic and varied across hospital types. Sentiment analysis showed a negative tone for posts about security measures and situational updates. These findings align with the Agenda-Setting Theory, suggesting that hospitals influenced public discourse. Vaccine information posts were more positive, resonating with the Uses and Gratifications Theory by fulfilling the audience’s need for reassurance and guidance.

Using replicable machine learning techniques, this study elucidates the communication strategies employed by Spanish hospitals to manage healthcare emergencies, such as the COVID-19 pandemic. It highlights factors that potentially influence these strategies and provides theoretical justifications for them. The variation in communication strategies on Facebook among different hospital categories underscores the imperative for stricter guidelines and regulations to guarantee consistent and reliable communication during emergencies. This research provides valuable insights for practitioners and policymakers aimed at developing effective health communication strategies on social media.

The purpose of this study is to assess the effectiveness of a disaster preparedness communication curriculum for public health graduate students' understanding and use of communication strategies for reaching vulnerable groups with preparedness messages.

A training module was piloted in a health communication seminar in 2008 (n=9 students) and 2009 (n=15 students). The interactive module included lectures, videos, case study discussions, and disaster plan and message development. Students gave presentations to a panel of risk communication specialists from the university and state health department.

Analysis of Likert‐type pre/post‐survey items showed significant improvement in students' knowledge about disaster communication and confidence regarding use of communication principles to develop clear messages (p<0.05). In response to open‐ended questions, students reported enjoying the “practical experience of developing messages” and learning the “importance of media and health professionals working together”.

This pilot evaluation involved a relatively small sample of students. Although students were assured that all survey responses would remain anonymous, social desirability may have played a role in their written responses.

The educational module appears to be effective in engaging public health students in disaster communication strategies for reaching vulnerable populations. Studying effective communication strategies well before a disaster situation occurs will help to anticipate community‐specific communication needs and reduce concern.

The instructional approach and content developed could be adapted for training health care and public health professionals to communicate effectively in planning for and responding to disaster situations.