What is the criteria for classifying the risk of the epidemic?

One. High-risk areas.

1) Classification criteria.

Designate high-risk areas where cases and asymptomatic infections live, as well as workplaces and venues with high activity and a high risk of transmission. In principle, the residential area (village) is delineated, and the scope of the risk area can be adjusted according to the results of the flow survey.

2) Prevention and control measures.

Containment control measures were implemented during which "stay at home and provide door-to-door services". If a new infected person is found during the closure period, the local joint prevention and control mechanism will organize a risk assessment. In accordance with the requirements of "one zone, one policy", the closure time of the original control area can be extended in whole or in part.

3) Upgrading. There were no new infections for 7 consecutive days, and all the people in the risk area completed a round of nucleic acid screening on the 7th day and were negative, and were reduced to the moderate risk area; There were no new infections for 3 consecutive days, and it was reduced to a low-risk area.

Second, the medium-risk zone.

1) Classification criteria.

Cases and asymptomatic infected persons stay and move for a certain period of time, and workplaces, activity venues, and other areas where there may be a risk of the spread of the epidemic are classified as medium-risk areas, and the scope of risk areas is to be delineated on the basis of the results of the mobile survey.

2) Prevention and control measures.

During the implementation of control measures, "people do not leave the area, and things are taken at staggered peaks".

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

Three. Low-risk areas.

Risk areas refer to other areas in the counties (cities, districts, banners) where medium and high risk areas are located.

Implement "personal protection and avoid gatherings", and leave the city with a 48-hour negative nucleic acid test certificate.

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

In addition, there are normalized prevention and control areas:

Fourth, the field of normalized prevention and control.

Counties (cities, districts, banners) where no epidemic has occurred shall implement normalized prevention and control measures;

Definition of risk zone:

1. High-risk areas.

Generally, it means that the cumulative number of new crown cases exceeds 50, and there is a cluster epidemic within 14 days.

2. Medium-risk areas: There are new confirmed cases of new crown within 14 days.

Total COVID.

The number of confirmed cases does not exceed 50; A total of more than 50 cases have been confirmed, and there have been no clusters in 14 days.

3. Low-risk areas.

There have been no confirmed cases of COVID-19, or no new confirmed cases for 14 consecutive days.

1. Criteria for classifying low, medium and high risk levels.

1. Low risk: no confirmed cases or no new confirmed cases for 14 consecutive days;

2. Medium risk: There are new confirmed cases within 14 days, the cumulative number of confirmed cases does not exceed 50, or the cumulative number of confirmed cases exceeds 50, and there is no cluster epidemic within 14 days;

3. High risk: The cumulative number of cases exceeds 50, and there are clusters of epidemics within 14 days.

2. Prevention and control strategies for low, medium and high-risk areas.

According to the Fifth Edition of the Novel Coronavirus Pneumonia Prevention and Control Plan released on the official website of the National Health Commission, in accordance with the Law of the People's Republic of China on the Prevention and Treatment of Infectious Diseases, the Regulations on Emergency Response to Public Health Emergencies and other laws and regulations, the implementation of zoning, grading and precise prevention and control. With counties (districts) as units, based on comprehensive research and judgment of population and incidence of disease, scientifically classify epidemic risk levels, and clarify hierarchical and categorical prevention and control strategies.

Low-risk areas: Implement the "external import prevention" policy. Strengthen the tracking and management of inflows from areas with serious epidemics and high-risk areas, and do a good job in health monitoring and services.

Medical establishments have strengthened the surveillance, detection, and reporting of fever outpatient cases, and disease control institutions have promptly carried out epidemiological investigations and close contact tracing management. Supervise and guide urban and rural communities, government agencies, enterprises, and public institutions to strictly implement community prevention and control measures, do a good job in environmental sanitation rectification, and popularize public disease prevention knowledge and protection skills.

Medium-risk areas: Implement the strategy of "preventing foreign importation and internal proliferation". On the basis of adopting various measures in low-risk areas, make preparations for medical treatment, disease prevention and control, personnel, materials, and venues, and conduct isolation and medical observation and management of close contacts of cases.

With school classes, building units, factory workshops, workplace offices, etc. as the smallest units, and case discovery, epidemiological investigation, and epidemic analysis as clues, reasonably determine the places and personnel for prevention and control management, and implement targeted prevention and control measures. Townships, neighborhoods, and urban and rural communities without confirmed cases may take prevention and control measures with reference to low-risk areas.

High-risk areas: Implement the strategy of "internal prevention of proliferation, external prevention of export, and strict control". On the basis of adopting various measures in medium-risk areas, stop gathering activities, and implement regional traffic control after approval in accordance with the law and procedures.

At the county level, comprehensively screen for fever patients, promptly admit and manage suspected cases, confirmed cases, and asymptomatic infections, and carry out isolation and medical observation for close contacts. Disinfect relevant places in urban residential communities (rural natural villages) where community transmission or clustered epidemics occur, and adopt control measures such as restricting the gathering, entry and exit of people.

Legal analysis: 1. High-risk areas: generally refer to the cumulative number of new crown cases exceeding 50, and there is a cluster epidemic within 14 days.

2. Medium-risk areas: There are new confirmed cases of new crown pneumonia within 14 days, and the total number of confirmed cases of new crown pneumonia does not exceed 50 cases; A total of more than 50 cases have been confirmed, and there have been no clusters in 14 days.

3. Low-risk areas: There are no confirmed cases of new crown pneumonia, or no new confirmed cases for 14 consecutive days.

Legal basis: Regulations on Emergency Response to Public Health Emergencies

Article 14: The State shall establish a unified emergency prevention and control system.

Local people at or above the county level shall establish and improve emergency monitoring and early warning systems.

The people's health administrative departments at or above the county level shall designate institutions to be responsible for carrying out daily monitoring of emergencies and ensuring the normal operation of the monitoring and early warning system.

Article 15: Monitoring and early warning efforts shall formulate monitoring plans based on the types of emergencies, and scientifically analyze and comprehensively evaluate monitoring data. Potential hidden dangers discovered early and emergencies that may occur shall be promptly reported in accordance with the reporting procedures and time limits provided for in these Regulations.

In general, the criteria for dividing high, medium and low risk areas are based on whether there are confirmed cases of new crown in a street or community within 14 days and how many confirmed new crown cases there are, and the specific classification standards need to be adjusted in a timely manner according to the changes in the new crown pneumonia epidemic.

1. Region: Take streets and towns as the basic units.

3. Epidemic situation: how many new crown pneumonia cases are total, and whether there is a cluster of epidemics.

How to respond: 1. Implement the strategy of "internal prevention of proliferation, external prevention of export, and strict control" for high-risk areas, and continue to focus on epidemic prevention and control. When the epidemic situation in high-risk areas is effectively controlled, the scope of resumption of work and production will be expanded in an orderly manner.

2. Medium-risk areas should implement the strategy of "preventing foreign importation and internal proliferation", and resume work and normal life as soon as possible and in an orderly manner. Relevant personnel can return to work in an orderly manner, and epidemic prevention and control and enterprise resumption of work can be promoted simultaneously.

3. For low-risk areas, the implementation of "strict prevention of importation, overall consideration" measures, cancel the road restriction measures, and at the same time fully restore the order of production and life.