1 1 latest national epidemic prevention policy

In order to further guide all localities and departments to do a good job in COVID-19 epidemic prevention and control, the Comprehensive Group of the State Council Joint Prevention and Control Mechanism has formulated the Implementation Measures for Nucleic Acid Detection in COVID-19 Epidemic Prevention and Control, the Plan for Delineation and Control of Risk Areas in COVID-19, the Medical Observation Guide for Home Isolation of COVID-19 Epidemic and the Health Monitoring Guide for COVID-19 Epidemic.

Measures for the implementation of nucleic acid detection for epidemic prevention and control in COVID-19

Standardized monitoring

In areas where no epidemic has occurred, nucleic acid detection shall be carried out for risk posts and key personnel in strict accordance with the scope determined in the novel coronavirus Prevention and Control Plan (Ninth Edition) (hereinafter referred to as the Ninth Edition Prevention and Control Plan), and the scope of nucleic acid detection shall not be expanded. Generally, all employees will not be tested for nucleic acid according to the administrative area.

■ Check the medical staff of medical institutions.

Strengthen the monitoring of fever, dry cough, fatigue, sore throat, hypoesthesia, diarrhea and other symptoms, and carry out COVID-19 nucleic acid detection on all patients with fever. Suspicious patients without fever but with symptoms such as dry cough, fatigue, sore throat, hypoesthesia and diarrhea. Persons who have a history of epidemiology in COVID-19 or are engaged in dangerous occupations (see the following classification of dangerous occupational groups) should be tested for nucleic acid in time.

Nucleic acid was detected in hospitalized patients with unexplained pneumonia and severe acute respiratory infection.

All newly admitted patients and their caregivers were tested for nucleic acid. After suspicious patients are found in community health service stations, village clinics and individual clinics, they should report to community health service centers or township hospitals within 2 hours, and implement the nucleic acid detection strategy of "village report, township sampling and county detection", which can simultaneously detect antigens and find the epidemic situation as soon as possible.

■ Detection of occupational groups at risk

Every day, 1 time nucleic acid detection was conducted for people who directly contact with entry personnel, articles and the environment (such as drivers of cross-border vehicles, cleaners, maintenance workers, porters of imported articles at ports, front-line personnel of customs and entry-exit administration departments who directly contact entry personnel and articles), staff of centralized isolation places, medical staff of designated medical institutions, medical staff of fever clinics of comprehensive medical institutions, etc.

For employees with dense working environment, frequent contact and strong mobility (such as express delivery, take-away, hotel service, decoration and loading and unloading service, transportation service, supermarket and agricultural (trade) market staff, etc. ), port management service personnel and staff of other departments of general medical institutions except fever clinics, conduct nucleic acid testing twice a week. After the occurrence of 1 local epidemic in the jurisdiction, the frequency of nucleic acid detection shall be encrypted according to the epidemic spread risk or local epidemic prevention and control requirements.

■ Personnel detection in key institutions and places

Schools, kindergartens, old-age care institutions, child welfare service institutions, psychiatric hospitals, training institutions and other key institutions, supervision places, production workshops, construction sites and other crowded places should do a good job in monitoring the symptoms of relevant personnel under normalization, and organize nucleic acid sampling according to local prevention and control needs. After the occurrence of 1 local epidemic cases and above in the jurisdiction, 1 full-time nucleic acid detection should be organized in time, and then nucleic acid detection can be carried out according to the detection results and the risk of epidemic spread, according to the sampling ratio of at least 20% per day or the detection requirements of the jurisdiction.

■ Community management crowd detection

The infected people discharged from COVID-19 and the residents included in community management were tested for 1 nucleic acid on the 3rd and 7th day after discharge.

Conduct "five-day home health monitoring" for employees in high-risk positions who have completed closed-loop operations, and conduct code management during this period. Perform 1 nucleic acid test on 1, 3 and 5 respectively, and don't go out unless necessary.

Carry out "7-day home isolation medical observation" on overflow personnel in high-risk areas, during which the designated code management is implemented and they are not allowed to go out. 1, 3, 5 and 7 days are respectively tested for 1 nucleic acid. The management period is from leaving the high-risk area to 7 days. Once the inflow is found; the overflow personnel shall be tested for nucleic acid 1 time immediately; and then at the required frequency. When the leakage is found in the investigation, if the leaking personnel have left the high-risk area for more than 7 days, it is not necessary to immediately complete the 1 nucleic acid test and then conduct home isolation.

For those who leak in low-risk areas, complete nucleic acid detection twice within 3 days, with an interval of 24 hours.

On the 3rd day after 1 and judgment, 1 nucleic acid was detected for those exposed in epidemic-related places.

Close contacts and entry personnel released from centralized isolation were tested for 1 nucleic acid on 1 day and 3/day respectively.

Other personnel who need to assist in the investigation shall conduct nucleic acid testing and health monitoring in accordance with the requirements of territorial prevention and control. 1 Nucleic acid detection shall be conducted immediately after the risk personnel are found through investigation or investigation.

■ Testing of drug buyers

After the local epidemic occurs, pharmacies in the jurisdiction should register the people who buy antipyretic, antiviral, antibiotic, cough and cold medicine with their real names and push them to the streets (communities) in the jurisdiction, and urge users to carry out nucleic acid testing in time, and if necessary, carry out 1 antigen testing first.

■ Cross-regional mobile personnel detection

In accordance with the principle of "voluntary, free, take away, unlimited flow", set up nucleic acid sampling points in airports, railway stations, long-distance passenger stations, provincial service areas of expressways, ports and other places to provide "landing inspection" services for migrant workers across provinces, and guide those who go out on the road to take the initiative to carry out nucleic acid testing in various places.

Passengers are required to take planes, high-speed trains, trains, inter-provincial long-distance buses, inter-provincial passenger ships and other means of transportation with negative nucleic acid tests within 48 hours. Persons leaving the land border port cities must hold negative nucleic acid test certificates within 48 hours.

For those who stay in hotels and enter tourist attractions, check the health code and negative nucleic acid test certificate within 72 hours.

Special people such as infants under 3 years old can be exempted from checking negative proof of nucleic acid test.

What conditions can be met to stop all nucleic acid detection?

■ Provincial capital cities and cities with a population of10 million or more.

After the outbreak of the epidemic, it was found that the transmission chain was unclear, there were many risk sites and risk personnel, and the risk personnel were highly mobile, so there was a risk of epidemic spread. 1 nucleic acid detection is carried out every day in epidemic areas. After three consecutive nucleic acid tests without social infection, perform 1 nucleic acid tests every three days. If there is no social infection, all nucleic acid tests can be stopped.

In areas where other infected people have frequent activities and stay for a long time, on the basis of mobile investigation, a certain area can be designated to carry out full-time nucleic acid testing. In principle, 1 full-day nucleic acid detection is conducted every day. If there is no social infection after three consecutive nucleic acid tests, the whole nucleic acid test can be stopped.

When an epidemic spreads widely in the community across regions, the command will be upgraded, and the provincial epidemic prevention and control agency will decide whether to carry out full-scale nucleic acid testing within the city.

■ Ordinary cities

After the outbreak of the epidemic, it was found that the transmission chain was unclear, there were many risk sites and risk personnel, and the risk personnel were highly mobile, so there was a risk of epidemic spread. In the urban area of the city where the epidemic is located, 1 time full-time nucleic acid detection is carried out every day. After three consecutive nucleic acid tests without social infection, 1 full-time nucleic acid tests were conducted every three days. If there is no social infection, you can stop full-time nucleic acid testing.

In areas outside the city, on the basis of mobile investigation, a certain area is designated to carry out all-staff nucleic acid testing. In principle, 1 full-day nucleic acid detection is conducted every day. If there is no social infection after three consecutive nucleic acid tests, the whole nucleic acid test can be stopped.

■ Rural areas

After the outbreak of the epidemic, it was found that the transmission chain was unclear, there were many risk sites and risk personnel, and the risk personnel were highly mobile, so there was a risk of epidemic spread. In the natural villages, township governments and county towns involved in the epidemic, 1 time full-time nucleic acid detection was conducted every day. After three consecutive nucleic acid tests without social infection, 1 time full-time nucleic acid test shall be conducted every three days. If there is no social infection, the full-time nucleic acid test may be stopped.

When the epidemic spread to several towns and villages, on the basis of investigation and judgment, expand the scope to carry out all-staff nucleic acid testing. In principle, 1 full-day nucleic acid detection is conducted every day. If there is no social infection after three consecutive nucleic acid tests, the whole nucleic acid test can be stopped.

Delineation and control scheme of epidemic danger zone in COVID-19

Officials clearly defined the standards for high-risk areas.

■ High risk areas

Classification standard. In principle, the living places of infected people, as well as areas with frequent personnel activities and high risk of epidemic spread, such as workplaces and activity places, are listed as high-risk areas. High-risk areas are generally defined by units and buildings. In the case that the risk of epidemic spread is not clear or there is widespread community spread, the scope of high-risk areas can be appropriately expanded. The scope of risk areas can be dynamically adjusted according to the results of traffic investigation and judgment.

Prevention and control measures. Implement closed control measures, during which "stay at home and provide on-site service". If new infected persons are found during the containment period, the local joint prevention and control mechanism will organize risk judgment, and the containment time of the original containment area can be extended in whole or in part according to the requirements of "one area, one policy".

Raise the flag. No new infection cases were found in the high-risk area for five consecutive days. On the fifth day, all the people in the high-risk area were negative after completing a round of nucleic acid screening, and they were reduced to low-risk areas. High-risk areas that meet the conditions for unsealing should be unsealed in time.

■ Low risk areas

Other areas in counties (cities, districts and banners) where high-risk areas are located are classified as low-risk areas. Implement "personal protection to avoid aggregation" and leave the city with a negative nucleic acid test certificate within 48 hours.

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

■ These five situations may not be included in the determination of risk areas.

Confirmed cases and asymptomatic infected people found during centralized isolation medical observation, after investigation and evaluation, there is no risk of transmission outside the centralized isolation point.

Confirmed cases and asymptomatic infected people found in the observation of home isolation medicine have no risk of transmission outside the home after investigation and evaluation.

The confirmed cases and asymptomatic infected people found in the strict closed-loop management process of employees in high-risk positions have no risk of transmission outside the closed-loop after investigation and evaluation.

After leaving the hospital (cabin), those who are positive for nucleic acid detection have no risk of transmission after investigation and evaluation.

The Ct value of nucleic acid detection is ≥35, and it is screened as an entry person with previous infection.