In order to ensure the safety of teachers and students at school, a notice is issued and closed management is implemented. In some areas, college students have been infected. For example, there was a cluster epidemic in Jilin Agricultural Science and Technology College, and some college students in Chongqing were also infected. It is precisely because of the student infection incident that many colleges and universities have sounded the alarm, and many colleges and universities have further strengthened the prevention and control of campus epidemics.

The closed management of universities does not allow students to go home on holiday, mainly because college students will flow across provinces and cities after leaving school, which increases the difficulty of epidemic prevention and control. The closed management of the school is also for the safety of students.