On February 7th, 65438, the joint prevention and control mechanism of the State Council issued the Notice on Further Optimizing the Implementation of COVID-19 Epidemic Prevention and Control Measures, pointing out that it is necessary to further optimize the school epidemic prevention and control work. Schools around the country should resolutely implement the requirements of scientific and accurate prevention and control, schools without epidemic situation should carry out offline teaching activities normally, and supermarkets, canteens, stadiums and libraries on campus should be opened normally.