I. Control measures for various risk groups
(1) Entry personnel. The control measures were adjusted to 7 days of centralized isolation medical observation and 3 days of home health monitoring. Nucleic acid detection was carried out on 1, 2, 3, 5 and 7 days of centralized isolation medical observation, and nucleic acid detection was carried out on the third day of home health monitoring.
(2) Close contacts. The control measures were adjusted to 7 days of centralized isolation medical observation and 3 days of home health monitoring. Nucleic acid detection was carried out on 1, 2, 3, 5 and 7 days of centralized isolation medical observation, and nucleic acid detection was carried out on the third day of home health monitoring. The isolation control period starts from the last exposure, and returns to the place of residence in a "point-to-point" closed loop after the centralized isolation is lifted.
(3) Close contacts. The control measures were adjusted to 7-day home isolation medical observation, daily monitoring of body temperature and symptoms, and nucleic acid detection on 1, 4 and 7 days respectively. If the results of the first two nucleic acid tests of close contacts are positive, the close contacts of close contacts (hereinafter referred to as close contacts) shall be adjusted to close contacts and managed as close contacts.
(4) Persons exposed in places related to the epidemic situation. If the wedding (funeral) banquets, restaurants, supermarkets, shopping malls, farmers' markets and other crowded and closed places that are in contact with suspected cases, confirmed cases and asymptomatic infected persons do not conform to the principle of close contacts and close contacts, the control measure is to conduct a nucleic acid test on 1 3 days after the judgment.
(5) People who have lived in high-risk areas for 7 days. The control measures were adjusted to centralized isolation medical observation for 7 days, and nucleic acid detection was carried out on 1, 2, 3, 5 and 7 days respectively. The management period starts from leaving the risk area.
(6) People who have lived in moderately dangerous areas for 7 days. The control measures were adjusted to 7 days of home isolation medical observation, and nucleic acid detection was carried out on 1, 4 and 7 days respectively. The management period starts from leaving the risk area.
(7) Persons who have lived in low-risk areas for 7 days. Control measures are adjusted to complete nucleic acid detection twice within 3 days and do a good job in health monitoring.
(8) Employees in high-risk positions. Closed-loop management measures should be strictly implemented for high-risk positions such as cold storage at the first station, international flights, centralized isolation places, etc., which are in direct contact with entry personnel, imported cold chain goods and the environment. After leaving work, the control measures were adjusted to 7 days of centralized isolation medical observation, and nucleic acid detection was carried out on 1, 4 and 7 days respectively. When positive articles for nucleic acid detection are found in the circulation and sales of imported cold chain foods, the relevant articles shall be temporarily sealed and disinfected, and the work area shall be disinfected. The control measures for employees exposed to positive articles and the same batch of articles are two consecutive nucleic acid tests (the sampling interval is at least 24 hours), in which employees with high exposure frequency take home health monitoring for 7 days, and the nucleic acid tests are carried out on 1, 4 and 7 days respectively.
(9) Land flowing from border port cities. People leaving the land border port city must hold a 48-hour negative nucleic acid test certificate. When there is an epidemic in the local area, people who leave the land border port city must have not only the 48-hour negative nucleic acid test certificate, but also the relevant certificate issued by the community or unit. Other areas should check the relevant documents of urban influxes at land border ports.
(ten) into the community management of COVID-19 discharged (cabin) infected people. The control measures were adjusted as follows: COVID-19 discharged infected persons and their residents were monitored at home for 7 days after discharge, and nucleic acid detection was carried out on the third and seventh days respectively.
(1 1) asymptomatic infected persons. Centralized isolation medical observation was conducted in Fangcang Hospital (or designated hospital or sub-designated hospital) for 7 days. Nasopharyngeal swabs were collected for nucleic acid detection on the 6th and 7th day (the sampling time was at least 24 hours apart). For example, the Ct values of both N gene and ORF gene are ≥35 (the limit of fluorescence quantitative PCR detection method is 40, the same below), or the detection is negative (the limit of fluorescence quantitative PCR detection method is lower than 35, the same below). If the above conditions are not met, they will continue to be isolated in the shelter hospital until they meet the criteria for leaving the cabin. During the period of centralized isolation medical observation, the patient's condition should be well monitored, and after reaching the diagnostic standard of confirmed cases, it should be corrected as confirmed cases in time. After the centralized isolation medical observation is lifted, home health monitoring should continue for 7 days.
Second, risk area delineation and prevention and control
Cancel the delineation standards and control measures of intact control areas, control areas and prevention areas, and uniformly adjust the delineation standards and control measures of high, medium and low risk areas as follows:
(1) High risk area. Areas where cases and asymptomatic infected people live, as well as workplaces and activity places with frequent activities and high risk of epidemic spread, are designated as high-risk areas. In principle, residential areas (villages) are taken as units, and measures such as "staying at home and providing on-site services" are adopted. The high-risk area was reduced to the medium-risk area for 7 consecutive days, and the medium-risk area was reduced to the low-risk area for 3 consecutive days.
(2) Medium risk area. Cases and asymptomatic infected people stay and move for a certain period of time, and areas such as workplaces and activity places that may have the risk of epidemic spread are classified as medium-risk areas. According to the results of abortion investigation, the risk area was defined, and control measures such as "people don't leave the area, taking things at the wrong peak" were taken. No new infected people fell to low-risk areas for 7 consecutive days.
(3) Low-risk areas. Other areas in the county (city, district) where the middle-high risk area is located are low-risk areas, and preventive measures such as "personal protection and avoiding gathering" should be taken. People in low-risk areas should have a negative nucleic acid test certificate for 48 hours when leaving their cities.
After all the high-risk areas are removed, all counties (cities, districts) will implement normalized prevention and control measures. After the occurrence of a local epidemic, the high, medium and low risk areas are delineated by the municipal epidemic prevention and control headquarters in accordance with the relevant provisions of the novel coronavirus Prevention and Control Plan (Ninth Edition), and experts are organized according to the risk of epidemic spread, and the provincial epidemic prevention and control headquarters gives professional guidance and support.
Third, nucleic acid detection.
(1) Confirmed cases, asymptomatic infected persons, entry personnel, close contacts and close contacts.
During hospitalization, when conducting isolated medical observation or health monitoring, "single sampling and single inspection" should be adopted, that is, individual specimens should be collected separately and nucleic acid detection should be carried out in a single tube, and mixed sampling and mixed inspection are not allowed. Medical and health institutions, third-party testing institutions, etc. The laboratory test results should be fed back within 12 hours.
(2) personnel in key positions or places
Daily 1 inspection crowd: passengers, cleaners, cross-border vehicle maintenance personnel, porters of imported goods at ports, front-line personnel of imported cold-chain food storage and processing enterprises, staff of centralized isolation places, staff of designated medical institutions, medical personnel related to fever clinics of comprehensive medical institutions, customs, exit-entry administration departments and other front-line personnel who directly contact with inbound personnel and goods.
Check the crowd twice a week: express delivery, take-away, hotel services, decoration and loading and unloading services, port management service personnel, transportation services, shopping malls, supermarkets and agricultural (trade) market staff. And staff of general medical institutions other than fever clinics. If there are 1 local positive infection cases within the jurisdiction, the frequency of nucleic acid detection should be appropriately increased according to the risk of epidemic spread and the local epidemic prevention and control requirements.
Key places and institutions: schools, kindergartens, training institutions, service institutions in the fields of pension and child welfare, psychiatric hospitals, supervision places, production workshops, construction sites and other key places. If there are 1 local positive infected people in the jurisdiction, they should organize 1 person to carry out the whole process of nucleic acid detection in time, and then carry out the nucleic acid detection according to the detection results and the risk of epidemic spread of at least 20% every day or the local epidemic prevention and control requirements.
(3) Middle and high risk areas
Three consecutive tests were conducted in the first three days after the closure or control, two full-time nucleic acid tests were completed on the first 1 day and the third day, and one antigen test was conducted the next day. The frequency of subsequent tests can be determined according to the test results; Full-time nucleic acid detection should be completed in this area within 24 hours before the closure or control is lifted. In high-risk areas, buildings and courtyards where positive infected people have been found can be tested for antigen first, and then for nucleic acid in an orderly manner after being negative.
Low-risk area
According to the risk assessment results of epidemic spread and the management of risk personnel, the population range and frequency of nucleic acid detection in low-risk areas are scientifically determined. When conducting nucleic acid detection, sampling points will be set nearby, which will be activated after professional evaluation.
(v) Regional nucleic acid detection strategy
1. Shenyang and Dalian
After the outbreak, after investigation, it is found that the transmission chain is unclear, there are many risk sites and risk personnel, and the risk personnel are highly mobile, so there is a risk of epidemic spread. All personnel in the epidemic area should be tested once a day. After three consecutive tests of nucleic acids without social infection, they should be tested again every three days, and all those without social infection 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, a full-time nucleic acid test is conducted once a day, and the full-time nucleic acid test is stopped if there is no social infection for three consecutive nucleic acid tests.
When an epidemic spreads widely in the community across regions, it should be upgraded to the headquarters, and the provincial epidemic prevention and control headquarters will decide whether to carry out full-time nucleic acid testing within the city.
2. Other cities
After the outbreak of the epidemic, after investigation, it is judged that the transmission chain is unclear, there are many risk places and risk personnel, and the risk personnel are highly mobile, so there is a risk of epidemic spread. Full-time nucleic acid testing is carried out once a day in the urban area where the epidemic is located. After three consecutive nucleic acid tests have no social infection, full-time nucleic acid testing can be stopped every three days.
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, a full-time nucleic acid test is conducted once a day, and the full-time nucleic acid test is stopped if there is no social infection for three consecutive nucleic acid tests.
3. 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. The natural villages and township governments involved in the epidemic are located and counties where they are located, and a full-time nucleic acid test is carried out every day. After three consecutive nucleic acid tests without social infection, a full-course nucleic acid test was conducted every three days. If there is no social infection, you can stop full-time nucleic acid testing.
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, a full-time nucleic acid test is conducted once a day, and the full-time nucleic acid test is stopped if there is no social infection for three consecutive nucleic acid tests.
(6) Standardized nucleic acid detection
Municipalities should make overall planning, rationally arrange nucleic acid sampling points, and build a 15-minute walking nucleic acid "sampling circle" in key parts of the city, bus stations, densely populated residential areas, enterprise gathering areas, schools, supermarkets and other places with large rural population mobility. According to the actual situation, each city determines the nucleic acid detection frequency of all employees after judgment.
Four, key places, key institutions and key population prevention and control
(1) key sites
Stations, ports, airports, docks, public transport (cars, trains, airplanes, subways), logistics parks, nucleic acid detection points, farmers' (bazaars) markets, hotels, shopping malls, supermarkets, fitness and entertainment places, hairdressing and bathing places, theaters, stadiums, libraries, museums and other places with dense people and closed spaces are prone to cluster epidemics.
In the prevention and control of normalized epidemic situation, it is necessary to register the health status of the staff, and check the temperature and health code of the staff and customers who enter the place. Only people with normal temperature and health code can enter. Staff wear medical surgical masks, N95/KN95 or above anti-particle masks and disposable gloves all the time. Passengers or customers wear disposable medical masks, medical surgical masks or above. The target population of COVID-19 18 years old and above who meet the vaccination conditions was given 1 dose of hypohomologous booster immunization or sequential booster immunization.
After the local epidemic, we should strictly monitor the health of permanent and temporary employees, and implement the system of "daily report" and "zero report". If there are suspicious symptoms, you should seek medical attention in time, and you should not take up your post with illness. Strictly control the number of people entering the site, and the personnel density can be controlled according to the standard of 50% of normal passenger flow. In the office, staff should be arranged to sit in a separate position, and measures such as home office and decentralized office should be taken if conditions permit. Strictly check the temperature, health code and nucleic acid test results of the staff and customers who enter the place, and only those who are not abnormal can enter.
(2) Key institutions
Institutions that maintain the normal operation of society or are prone to cluster epidemics, including party and government organs, enterprises and institutions, medical institutions, service institutions in the field of child welfare, nursing homes, nursing homes, supervision places, colleges and universities, primary and secondary schools, kindergartens, training institutions, labor-intensive enterprises, construction sites, etc., must strictly implement the main responsibility of the unit.
During the period of normalized epidemic prevention and control, the health of the staff was monitored every day, and a health account was established. If you have symptoms such as fever, dry cough, fatigue and sore throat, you should seek medical advice in time. Check the staff's temperature at the gate of the unit, check the visitor's temperature, check the health code and register. Only those who are normal can enter. Staff should wear medical surgical masks, N95/KN95 or above anti-particle masks and disposable gloves according to their work nature and risk level. The target population of COVID-19 18 years old and above who meet the vaccination conditions was given 1 dose of sub-low homologous booster immunization or sequential booster immunization.
After the local epidemic, we should strictly monitor the health of permanent and temporary employees, and implement the system of "daily report" and "zero report". If you have suspicious symptoms, you should seek medical attention in time, and you should not take up your post with illness. Strictly check the body temperature, health code and nucleic acid test results of the staff entering the institution, and only those who are normal can enter. Medical institutions should strengthen the management of fever clinics, strictly pre-check and triage, control the number of patients through appointments, and implement closed management of inpatient areas. Nursing homes, nursing homes, service institutions and supervision places in the field of children's welfare shall implement measures such as closed management and video visits, and shall not hold gathering activities. Colleges and universities should adopt closed management, strengthen the examination and approval management of all kinds of gathering activities, not organize large-scale gathering activities unless necessary, limit class meals, strengthen the ventilation of classrooms and dormitories, and set up express delivery points reasonably. Primary and secondary schools and child care institutions can stop offline teaching. Party and government organs, enterprises and institutions should take measures such as commuting at wrong time, flexible working system or working at home, and not providing meals in class.
(3) Key groups
Staff in key places and institutions, people with high risk of infection or low resistance, including medical personnel, front-line personnel of entry and exit, customs and market supervision system, police, sanitation workers, security guards and cleaners, port transport practitioners, couriers, water and electricity workers, home isolation medical observation or home health monitoring personnel, rescuers in local epidemic areas, epidemic prevention and control personnel, vagrants and beggars, and scattered decoration and construction personnel.
During the period of normalized epidemic prevention and control, do a good job in self-health monitoring, wear masks scientifically, do a good job in hand hygiene, live a regular life, get enough sleep, pay attention to cough etiquette, strengthen the awareness of people who are the first responsible for health, and improve the health protection skills of key people.
After the local epidemic, do a good job of self-health monitoring. If you have fever, dry cough, fatigue, sore throat and other symptoms, you must seek medical advice in time, and don't go to work or attend classes with illness. Avoid parties, dinners, weddings, funerals and other party activities. People with poor resistance and basic diseases should go out less and don't go to crowded places, especially places with poor ventilation.
Judgment of Aggregation Epidemic Situation of verb (abbreviation of verb)
The standard is: 2 or more cases and asymptomatic infected persons are found in the same school, residential area, factory, natural village and medical institution within one week.
Six, the epidemic information release
After the outbreak, the municipal epidemic prevention and control headquarters shall release relevant information such as the epidemic situation and risk areas within 5 hours. The epidemic information shall be based on the data directly reported by the network, and a press conference shall be held no later than the next day, and a daily routine press conference mechanism shall be established.
Seven. Related requirements
(A) home isolation medical observation. Door magnets should be installed during medical observation in home isolation, and no one should go out and refuse all visits. For those who really need to go out due to special circumstances such as medical treatment, they can go out only after being approved by the local community medical observation and management personnel, arrange a special car, do personal protection throughout the whole process, and implement closed-loop management measures. Medical observers in home isolation should measure their body temperature and self-health monitoring once every morning and evening, and report the monitoring results to the community medical observation management personnel.
(2) Family health monitoring. Don't go out during family health monitoring. If you really need to go out due to special circumstances such as medical treatment, you should do personal protection, wear N95/KN95 anti-particle mask and avoid taking public transport. Family health monitoring personnel take their body temperature once every morning and evening, do a good job in symptom monitoring and report to the community (village) truthfully.
(3) Requirements for nucleic acid detection. Centralized isolation, home isolation and health monitoring personnel do not require double sampling and double inspection before lifting management measures. If the article or environmental nucleic acid test is positive, the centralized isolation can be lifted only after the possibility of infection by the isolated object is ruled out.
The relevant policies of this notice shall be implemented as of June 27, 2022. Matters not covered in this notice shall be strictly implemented in accordance with the novel coronavirus Prevention and Control Plan (Ninth Edition), and all localities shall not exceed the standard.