Novel coronavirus pneumonia prevention and control plan
(ninth edition)
(ninth edition)
html l4 close contacts
and management guide
In order to guide local governments to further determine and manage risk personnel such as close contacts of new coronavirus pneumonia cases and asymptomatic infections , this guideline is formulated.
1. Principles of judgment
Close contacts
People who have close contact with them but have not taken effective protection from them 2 days before the symptoms of suspected cases and confirmed cases appear, or 2 days before the sampling of asymptomatic infected persons. For cases found through multiple nucleic acid testing methods (such as regular nucleic acid testing for high-risk occupational populations), the time limit for the judgment of close contacts is from the time of the last negative nucleic acid test to before isolation and control. According to the epidemiological investigation results of the epidemiological investigation, combined with the activity trajectory and other big data information provided by relevant departments, close contacts are determined based on the following principles:
1. People living together;
2. Those who directly care or provide diagnosis and treatment and nursing services;
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3. Medical staff, family members or other people who have close contact who are visiting the case;
4. Medical staff who implement aerosol diagnosis and treatment activities in the same space;
5. In offices, conference rooms, workshops, teams, and accommodation All people who have close contact in the same venue, such as houses and classrooms;
6. People who share bathrooms, ride elevators, eat together (tables/neighbors/frequently pass), entertain together and provide catering and entertainment services in closed or poorly ventilated environments;
7. People who take the same means of transportation and have close contact (within 1 meter) , including caring for caregivers and peers (family, colleagues, friends, etc.) on the means of transportation. See Appendix 5-1 for specific judgment principles;
8. Personnel exposed to environment and items contaminated by cases or asymptomatic infected persons;
9. On-site investigators evaluate other persons who believe that they meet the criteria for determining close contacts. When determining close contacts with
, priority will be given to determining and managing close contacts with high infection risk such as frequent contacts with cases and long duration, and timely conducting nucleic acid testing. For more complex case activity places (such as restaurants, entertainment venues, supermarkets and other confined space places), comprehensive analysis and judgment of the venue surveillance video, consumption records, place type, environmental conditions, ventilation conditions, personal protection conditions, etc., based on the analysis results, the scope of judgment of close contacts can be moderately expanded.
Close contacts with close contacts
Close contacts with close contacts with people with high risk of infection determine close contacts with people with frequent contacts such as living, dining, working (study), and entertainment (such as chess, cards, karaoke). The principle of judgment is for those who have close contacts and cases or asymptomatic infected persons who are exposed for the first time before the close contact is isolated and managed, and have not taken effective protection.
persons exposed to places involving epidemics
persons are exposed to wedding (mouriness) banquets, restaurants, supermarkets, shopping malls, farmers' (collective trade) markets and other dense and closed places, but do not meet the principle of determining close contacts and close contacts.
2. Contact management
Management method and term
1. Close contact management
1.If close contacts are found, they should be transferred to a centralized isolation place within 8 hours for centralized isolation and medical observation. Try to stay in a separate room and wear a mask before transfer. During the transfer process, take personal protection for the person being transferred and the transfer staff, and disinfect the transfer tools. Close contacts will take the management measures of "7-day centralized isolation and medical observation + 3-day home health monitoring" (hereinafter referred to as the "7+3" management measures). Do not go out during home health monitoring. If you are seeking medical treatment, you must take personal protection when going out and try to avoid taking public transportation. When a large-scale epidemic occurs, in order to alleviate the serious shortage of resources at centralized isolation points, the "5-day centralized isolation medical observation + 5-day home isolation medical observation" measures can be taken (hereinafter referred to as the "5+5" management measures). The isolation management period for close contacts is calculated from the last exposure of cases and asymptomatic infections.
For special groups, 7 days of medical observation for home isolation can be taken. Guidance and management should be strengthened, and medical observation measures for home isolation should be strictly implemented.
(1) Children aged 14 and under . If both their parents or family members are close contacts, centralized isolation and medical observation are preferred. With personal protection and interpersonal distance, children can live in the same room with their parents or family members. If only children are close contacts, they can take personal protection and maintain interpersonal distance under the guidance of community medical staff, and accompany the children to be isolated and medically observed at home; people with underlying diseases and the elderly cannot be accompanied by children.
(2) Close contacts with semi-self-care, lack of self-care ability, and severe underlying diseases . In principle, centralized isolation medical observation measures will be implemented, and designated personnel will take care of them. If centralized medical observation is indeed impossible, medical observation at home can be taken under the guidance of community medical staff. People with underlying diseases and the elderly cannot serve as caregivers.
2. Close contact management of close contacts . Close contacts with close contacts shall be subject to 7-day home isolation medical observation, and temperature and symptoms shall be monitored daily, and nucleic acid test shall be carried out once every day on the first, fourth and seven days. If the nucleic acid tests for close contacts during isolation observation are negative, and the corresponding close contacts are negative for the first two nucleic acid tests during isolation and medical observation are negative, they can be released from home isolation and medical observation on the 7th day; if the first two nucleic acid tests for close contacts have positive results, the close contacts of close contacts will be adjusted to close contacts and will be managed as close contacts.
3. Management of exposed personnel in the epidemic-related places . People who are exposed to crowded and closed places such as suspected cases, confirmed cases and asymptomatic infections, who are exposed to people with dense and closed places such as weddings (mourning) banquets, restaurants, supermarkets, shopping malls, farmers' (collective trade) markets, but do not meet the principle of determining close contacts and close contacts, will take nucleic acid testing measures for people with higher infection risks after risk assessment, and conduct nucleic acid testing once each on the first and third days after the judgment.
Management process
1. Inform . When performing medical observation, the reasons, deadlines, legal basis, precautions and disease-related knowledge of the medical observation should be informed in writing or orally, as well as the medical and health institutions and contact persons and contact information responsible for medical observation.
2. Nucleic acid detection . Close contacts who are under "7+3" management will conduct nucleic acid tests on the first, 2, 3, 5 and 7 days of centralized medical observation; and conduct nucleic acid tests on the third day of home health monitoring. Close contacts who adopt "5+5" management will conduct nucleic acid tests once every 1st, 2nd, 3rd and 5th days of centralized medical observation, and conduct nucleic acid tests once every 2nd and 5th days of home isolation medical observation. Close contacts are tested for nucleic acid once every 1, 4 and 7 days of home isolation medical observation.
3. Health monitoring . Do not go out during home health monitoring. If you are seeking medical treatment, you must take personal protection when going out and try to avoid taking public transportation.Take a temperature measurement of close contacts and close contacts every morning and evening, and ask about their health status and provide necessary help and guidance.
4. Treatment of abnormal symptoms . During medical observation, once any symptoms appear between close contacts and close contacts, such as fever, dry cough, fatigue, sore throat, loss of smell (taste), diarrhea, etc., they must be reported to the local disease control agency immediately, and sent to designated medical institutions for diagnosis and treatment in accordance with regulations, and samples are collected for laboratory testing and screening. If the screening results are suspected cases or confirmed cases, the persons they are in close contact should be investigated and medically observed.
5. Medical observation relieves . When centralized isolation is released, nucleic acid testing will be carried out for samples of "people, objects, and environment". If the results are negative, centralized isolation can be released; if the nucleic acid test for items or environment is positive, the possibility of infection of the quarantined object can be eliminated. After all the test results during the medical observation of home isolation were negative, the medical observation of home isolation was released. After the suspected case is ruled out, the close contacts of their close contacts and close contacts can be released from isolation and medical observation.
Management requirements
should live independently during centralized or home isolation medical observation, reduce contact with others, and in principle, you must not go out. If you need to go out, you must obtain approval from the management personnel and wear N95/KN95 particulate protective mask.
Information Report
Medical and health institutions that implement medical observation of close contacts shall fill out the "Case Form for Monitoring Health Status of Close Contacts Medical Observation" and do a good job in registration and statistical summary (see Appendix 5-2). Report in a timely manner through the medical observation and health status information network report module of close contacts. All localities need to conduct a quality review of each reported information.
Attachment 5-1&5-2
Source: Beijing Center for Disease Control and Prevention
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