In universities, students come from all corners of the country, and there may be few students from high-risk areas. Closed management can better control the epidemic situation. If a student is infected with the virus, it is enough to isolate his classmates who have contact with him, and there is no need to pay attention to off-campus personnel. This narrows the scope of detecting the epidemic and can also block the spread of the epidemic. In addition, students who are far away need to go back to school by train, high-speed rail, plane and other large means of transportation. There are also a large number of people gathered in cars or planes, and closed management is also conducive to the supervision and investigation of the epidemic.
The school belongs to a high-density crowd place, and once a classmate is infected with the epidemic, its spread speed can be imagined. According to relevant data, we can see that when a person is diagnosed as COVID-19, thousands of people have had contact with him. If students can get out of campus, they will meet more people and spend more manpower and material resources on investigation than closed management. Therefore, no matter from the economic point of view or from the safety point of view, closed management embodies its advantages.
Although China has achieved great success in epidemic prevention and control, we should not take it lightly. We should always pay attention to the epidemic situation to prevent it from rebounding and causing serious disasters. In the face of the COVID-19 epidemic, China has gained good experience, and the policies put forward by the Party and the state are guiding us to develop in a safer and better direction. What we have to do is strictly abide by these regulations, which not only protects our own lives, but also protects others. As the saying goes, every little makes a mickle, and each of us can abide by the rules, then the epidemic will soon be eliminated and life will be better.