There were no new infections for 7 consecutive days, and all the people in the risk area were negative after completing a round of nucleic acid screening on the 7 th day, which was reduced to a low-risk area.

Second, low-risk areas are reduced to normal prevention and control conditions

After all the medium and high risk areas are lifted, the counties (cities, districts and banners) will implement normalized prevention and control measures.

Three, high, medium and low risk area division standard

(A) high-risk areas

The areas where cases and asymptomatic infected people live, as well as workplaces and activities with frequent activities and high risk of epidemic spread are classified as high-risk areas. In principle, the residential area (village) is defined as a unit, and the risk area can be adjusted according to the results of the flow survey.

(2) Medium risk area

The areas where cases and asymptomatic infected people stay and move for a certain period of time, and may have the risk of epidemic spread, such as workplaces and activities, are classified as medium-risk areas, and the scope of risk areas is defined according to the results of flow investigation and judgment.

(3) Low-risk areas

Other areas in the counties (cities, districts and banners) where the middle and high-risk areas are located are low-risk areas.

Legal basis:

Law of the People's Republic of China on the Prevention and Control of Infectious Diseases Article 6 The health administrative department of the State Council is in charge of the prevention and control of infectious diseases and its supervision and management throughout the country. The health administrative departments of local people's governments at or above the county level shall be responsible for the prevention and control of infectious diseases and their supervision and management within their respective administrative areas.