For the staff who have local medical records (asymptomatic virus infection) but have not yet divided the risk range of ordinary high schools (prefectures, leagues) and municipal districts, they have lived in their life history. Conduct self-health monitoring for 14 days, and conduct "two inspections every three days" in the first three days (the interval between the two inspections must be 24 hours), and conduct virus detection on the seventh day and 14 days respectively.
In the past 14 days, people living in cities and cities where high-risk areas are located or in potential communities who spread risks, and people living in counties where medium-risk areas are located, have been monitored for 7 days for family health and 7 days for self-health, and have been tested for 3 times in 7 days. It is planned to conduct 14 times for virus testing.