White lines are drawn in communities during the epidemic. What does it mean when police cars come?

Explain that the community is a closed area.

1. During the epidemic, white lines are drawn in the community and police cars come. The area within the marked warning line represents the closed area, that is, the warning area, and no unauthorized entry is allowed.

2. Warning area. Based on the results of on-site epidemiological investigation, the area surrounding the closed and controlled area will be classified as a warning area as appropriate, and the implementation of "two points (residential point to work point) first line, non-essential "Leave" management measures. All personnel in the alert area will conduct a nucleic acid test within 24 hours.

3. If there are no new infected persons in the alert area within 14 days, the management will be lifted.