The close contacts of these confirmed cases are negative in nucleic acid test, which means that these people are in a healthy state and are not infected with diseases, which means that only the confirmed cases need to be isolated, which not only reduces the pressure on medical staff, but also reduces the pressure on society, which means that almost most close contacts can return to normal life, which can not only slowly restore the normal working order of the whole society, but also reduce the probability of infected people. On the other hand, it is of great significance to provide a good social response, because the vast majority of residents will be very happy after learning this information, so that everyone can cooperate with the epidemic prevention work more confidently, not only for their own health, but also for the sake of making the social environment in Taiyuan more stable, and even making more workplaces more confident that their work has been successful. On the other hand, it can directly reduce the pressure of epidemic prevention and control, because these people will also contact more people, resulting in greater pressure on epidemic control. However, if all these people's nucleic acid tests are negative, it means that it is almost impossible for them to get infected with diseases, which can directly reduce or alleviate the pressure of epidemic prevention and control, especially for the vast majority of working people, who are not only under great work pressure, but also have to pay off their mortgage and car loans. Therefore, this information will mean that the epidemic prevention and control work and residents in Taiyuan area can be well controlled, laying a solid foundation for the future epidemic prevention and control work.