| In recent years,along with our country people’s pursuit of increasingly good life journey in advance,the sudden public health incidents,such as "SRAS","H1N1" avian flu epidemic,"fake vaccine",etc.,affect the stability of the state,public security and economic growth,great test for the our country related department to deal with public health emergency management ability.Such breeding rumor easily in the development process of emergent public health events,especially in the asymmetric information,public opinion,reverse appear multiple times in this case,increase the rumors related to the rate of diffusion of information,public panic,not only threatens the life and health of the people in our country,also hindered the steady development of the state,society.Especially in new media technology and the application of era of rapid development and popularization,such as WeChat,weibo,trill as representative’s social media platforms,has become the public views,speak freely of public opinion space,but also for sudden public health event production,spread rumors provide a more convenient conditions,easy to form public opinion.However,there are many problems to be solved when the government and other institutions deal with the rumor spreading of such incidents,and it is particularly important to study how to effectively control the rumor.Based on the outbreak of the new champions league as the research background,WeChat,weibo and other new media as the research platform,using the visual angles of communication,and the statistics,social psychology,journalism and other disciplines theory knowledge into research,during the outbreak of rumors of real data analysis,insight into the epidemic rumors spread mechanism and law,scholars in the United States,he determined in the process of the spread of the five basic elements for the study of the rumors spread throughout the focus of the full text.The existence of epidemic rumors is of realistic legitimacy and particularity,but it is not impossible to effectively curb the spread of rumors.Therefore,the government,media and the public need to take practical coping strategies to improve their ability to deal with rumors in public health emergencies.To sum up,this paper is divided into five chapters,and the specific research contents of each part are as follows:The first chapter is the introduction part,which summarizes the literature used in this study,understands the research status of rumors and rumors of public health emergencies at home and abroad,elaborates the background and significance of this study,and makes clear the starting point and focus of this study.At the same time,this study will adopt the method of literature analysis,data analysis and case analysis to carry out a systematic exposition.The second chapter elaborates the connection between the four theories of governance,Lathwell’s 5W governance model,the "spiral of silence" theory and opinion leader theory and the content of this research,and forms the research hypothesis on this basis.Through summarizing the previous studies,the basic concepts of rumors and sudden public health events are defined,and the research problems and research objects are clarified.In the third chapter,the Python web crawler was used to collect the rumor data of Tencent’s "Jiaozhen" rumor dispelling platform and Weibo public account.After screening and reclassification,653 pieces of effective rumor dispelling information were integrated.Through the empirical analysis of real data,the content characteristics and social harm of COVID-19 rumor information are obtained.The fourth chapter starts with the propagation mode,factors and characteristics of rumors,and combines the 5W mode,the "spiral of silence" theory and the information asymmetry theory to analyze the propagation mechanism of rumors of this epidemic.The fifth chapter is based on the governance theory,theory of opinion leaders,combined with the actual case analysis,summed up the public health emergency in response to rumors spread by existing problems,and put forward a three yuan a stereo for a communal strategy-the government-led,media as the guide,citizen participation,and from three aspects:government,media and the public to put forward the strategies of the targeted. |