In the process of life, study, work and diagnosis and treatment, people who have been in contact with suspected cases, confirmed cases and asymptomatic infected people on the same means of transportation such as airplanes and trains, as well as people who have been in contact with public places such as shopping malls, farmers' markets, bus stops and subways, generally do not need to be isolated because they have not yet reached the principle of judging close contacts.
Disease control experts suggest that the general contact population of close contacts should be registered to inform health risks and minimize aggregation activities. Once you have symptoms such as fever, dry cough, fatigue, sore throat, decreased sense of smell, diarrhea, etc., you should seek medical advice in time and take the initiative to inform your contact history.
2 how do you know that you are a close contact? Close contacts refer to people who have been in close contact with viruses, suspected cases and confirmed cases two days before symptoms appear, or people who have not taken effective protection after sampling from asymptomatic infected people two days ago. According to the epidemiological investigation results and big data information provided by relevant departments, epidemiological investigation professionals judge close contacts according to the following principles:
1. Family members living in the same room.
2. Direct caregivers or providers of medical and nursing services.
3. Medical personnel who may carry out aerosol diagnosis and treatment activities in the same space.
4. In offices, workshops, teams, elevators, canteens, classrooms and other places that have close contact with people.
5. People who dine, entertain and provide catering and entertainment services in a closed environment.
6. Medical personnel, family members or other personnel who have close contact with the case.
7. People who take the same vehicle and have close contact (within 1 meter), including caregivers and companions (family, colleagues, friends, etc.). ) On the vehicle.
8. Persons exposed to the environment and articles contaminated by cases or asymptomatic infected persons.
9. On-site investigators evaluate other personnel who meet the criteria for judging close contacts.
How many times is it safe for a secret worker to do nucleic acid four times?
According to the epidemic prevention requirements, close contacts need to undergo centralized isolation medical observation for 14 days, and carry out nucleic acid detection for 4 times on 14 days, respectively, on 1 4 days 1 times.
After the isolation is lifted, home health monitoring should be carried out for 7 days. During the period, the body temperature and symptoms should be monitored, the flow rate should be reduced, and personal protection should be done when going out. Do not participate in aggregation activities, and conduct nucleic acid detection on the second and seventh days respectively.
What is sub-close contact? How to judge a close contact is referred to as a sub-close contact. This kind of crowd refers to people who have had close contact with close contacts for the first time, such as living, working, dining and entertaining in the same closed environment, but have not taken effective protective measures. Among them, the family members and colleagues of close contacts are the key groups.
According to the relevant epidemic prevention regulations, the second close contact person was subjected to centralized isolation medical observation for 7 days. If the results of nucleic acid test in the first 7 days in COVID-19 were negative, and the previous two nucleic acid tests of close contacts were also negative, the isolation was lifted, and then the daily health monitoring was carried out for 7 days. In the meantime, we must reduce mobility, do personal protection when going out, and do not participate in meetings, exhibitions, tourism and other gathering activities. In principle, you should not leave your county (city, district) before the daily health monitoring is completed.