Pop-up window 1: 14 days has visited counties (cities, districts, banners) with one or more native COVID-19 infected people.
Pop-up window 2: 14 days for people who have lived in the county where the land border crossing is located.
Pop-up 3: People in Entry Quarantine Period.
Pop-up window 4: people who are related to the risk area, location and people inside and outside Beijing in time and space and need to conduct risk investigation.
Pop-up window 5: Persons who have not completed nucleic acid detection within the specified time.