Earlier, the Ministry of Education has issued a notice requiring schools at all levels and types to scientifically judge the start time, and requiring schools in high-risk areas to postpone the start time and put students' life and health first. Therefore, when there is an epidemic in the local area, the education bureaus in many places inform primary and secondary schools at all levels to suspend classes. Hunchun City Education Bureau informed that all primary and secondary schools, child care institutions and off-campus training institutions have suspended classes and stopped all offline activities.