The incubation period of COVID-19 varies from 1-3 days to 2 1 day due to different people's constitutions.
Therefore, if the close contact person is negative for nucleic acid within 10 days, it can only show that COVID-19 has not been detected in nasopharyngeal secretions for the time being, but it cannot prove absolute safety. At this time, it is necessary to continue the separation and nucleic acid detection until the separation expires.
2 14 days incubation period when the most dangerous symptoms appear.
COVID-19 will proliferate after entering the human body for a period of time, but at the initial stage of infection, due to the small viral load in the body, it will not cause obvious clinical symptoms, and it is difficult to be detected.
When the virus in the body slowly proliferates to a certain amount, it will cause uncomfortable clinical symptoms such as headache, fever, fatigue and diarrhea. At this time, the virus carried in the body is relatively large, so it is relatively contagious.
3 How many days does it take to isolate the secret connector? Generally, centralized isolation takes 14 days.
Close contacts generally refer to those who have had close contact with suspected cases and confirmed cases but failed to take effective protection 4 days before symptoms appear or 4 days before asymptomatic infected persons are sampled.
If you are accidentally judged as an unannounced visitor, you need to avoid taking public transport, wait at home or in situ, and actively cooperate with the relevant work of the local epidemic prevention and control department. Generally speaking, centralized isolation takes 14 days, and then home isolation and health monitoring are carried out according to the results of later centralized isolation.
Will the health code of the secret connector change color? It will change color.
If it is judged as a secret recipient, the personal health code will turn red. At this time, we should not only take personal protective measures, but also avoid going to crowded places and taking public transportation, and prepare personal daily necessities, clothes, drugs for chronic diseases, etc. As soon as possible, wait for the transfer notice of the community.
Generally speaking, if the nucleic acid test is negative during the centralized isolation period of 14 days, it can be turned into yellow code, and it is necessary to continue to implement home health monitoring for 7 days.