Network public opinion is a double-edged sword. If we do not make good use of the network’s public opinion, it will result in immeasurable losses to individuals and the country. Therefore, we provide a dynamic model of infectious diseases to analyze and solve the problem of the spread of network public opinion. To deal with the problem, we have established four models based on the SEIR model, calculated the disease-free equilibrium points corresponding to the four models, and then figured out the basic reproduction number of the four models according to the disease-free equilibrium points. Based on the basic reproduction number, reasonable suggestions and references are given to solve this problem.
China is the world's largest consumer of tobacco and the world's largest victim of tobacco, so I hope to solve the problem of smoking transmission, which is important to control the scale of its transmission and reduce the harm to public health and socioeconomic development. In this paper, we use the infectious disease dynamics model (SIR) to solve the problem of smoking transmission. This paper introduces the SIR model as the basis and then establishes three new models to analyze the spread of smoking, and then calculates the Basic reproduction number according to the disease free equilibrium of the three models. Finally, the conclusions of the three models are used to propose corresponding countermeasures and suggestions, so as to analyze and solve the problem of the spread of smoking and provide a reference. The three models are used to calculate the Basic reproduction number.
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