With the opening of American colleges and universities, the epidemic situation on campus is not optimistic. In the past week, more than 500 new diagnoses have been made at the University of Alabama. One after another campus epidemic has aroused the concern of American media, which not only tangles between school health and income, but also leads to a “pot throwing game”. According to Fox News and other media reports, 531 students, teachers and school workers have been infected since last week, according to the confirmed data from the University of Alabama. These data do not include tests that were carried out at the time of the initial return to school, when a total of 310 positive results were reported. Many American university students have been diagnosed as one of the major viral transmission media. But in the face of the rapidly spreading epidemic, Stuart bell, the school’s principal, said the current situation could not be attributed to student activities. “Students are not our challenge.” “Our real challenge is the virus, it’s not the same,” he said Bell said it was necessary to determine the route and mode of transmission of the virus before working with teachers and students to reduce the frequency of related activities. The New York Times pointed out that many universities, in order to restore normal teaching and increase income, let students go back to campus and dormitories in order to resume normal teaching and increase income. The following epidemic situation is a “pot toss game”, and many students have been suspended for party. Education experts say schools will blame students for the surge in cases, and it will be the students’ responsibility to close the campus again. On the other hand, many universities also require students to supervise each other and report those who do not abide by social distance. The efficiency of this way and the impact on student relations are also the difficulties in the prevention and control of campus epidemic.