COVID-19 will slowly begin to proliferate after entering the human body, so there will be an incubation period. For people with different constitutions, the incubation period is different, generally speaking, it is about 3-7 days.
If the load of COVID-19 in the body is too small or does not reach the detection site, then the result of nucleic acid positive may not be found, so in general, repeated detection is needed to avoid the escape of the virus.
2. How many days will the secret connector be isolated? It is currently 7+3.
At present, the most popular COVID-19 is Omicron mutant, and its average incubation period is relatively short, mostly 2-4 days, and most of them can be detected within 7 days.
Therefore, based on the research results and the prevention and control practice in many places in China, the time limit and mode of isolation control for people at risk related to the epidemic situation were optimized, and the isolation control time for close contacts was adjusted from "14 days of centralized isolation medical observation +7 days of home health monitoring" to "7 days of centralized isolation medical observation +3 days of home health monitoring".
Can close contacts be infected with COVID-19 virus? Not necessarily.
Although COVID-19 is highly contagious among people, not all close contacts will be infected due to different constitutions and resistances. For some people with good constitution and high resistance, if the contact time is short, they may not be infected.
At present, many people have been vaccinated with COVID-19 vaccine, which can also reduce the possibility of being infected and suffering from serious diseases to some extent.
Will the 4-secret connection be closed? Generally speaking, the community will be closed.
If there is a secret code in the community, then the residents in the community belong to the sub-secret code. At this time, it is necessary to temporarily close the community according to regulations.
Moreover, the community needs disinfection, and all relevant personnel need to carry out nucleic acid testing and family health monitoring. Generally, as long as the nucleic acid test results are negative, then the blockade can be lifted, depending on the local epidemic prevention policy.