Public health has been under continuous threat worldwide in recent years . This study examined the impact of social support and social trust on the activities and efficacy of the public's risk response in the case of COVID-19 . We conducted an online survey over eight days with 620 Korean adult participants. Data were analyzed using structural equation modelling and K-means cluster analysis . Our results showed that public support had a positive impact on response efficacy, while response efficacy had a positive impact on sanitation, distancing, and purchasing activities . In addition, social support positively moderated the impact of public and individual support on response efficacy, while response efficacy negatively moderated the impact on sanitation activities . These results suggest that, first, amid viral risk, governments should proactively supply tools and information for infection-prevention, and deliver messages that encourage and support infection-prevention activities among the public . Second, when viral risk occurs, governments, along with all other members of society, must engage in aggressive risk response measures . Third, there is a need for risk communication that further emphasizes the importance of personal sanitation activities in the face of viral risk.
MeSH: Adult, Betacoronavirus, Communicable Disease Control, methods, Coronavirus Infections, prevention & control, psychology, Humans, Pandemics, prevention & control, Pneumonia, Viral, prevention & control, psychology, Public Opinion, Republic of Korea, Sanitation, Social Isolation, Surveys and Questionnaires, Trust