First, the latest isolation policy for overseas personnel returning to China
If you want to return home from abroad, there is a very strict process. Foreigners who hold three types of detention can have a double negative test directly without preliminary examination and do not need to apply for a visa. Generally speaking, the following types of foreigners can enter the country normally. Foreigners who hold permanent residence permits, C-shaped visas in the field of diplomatic service, valid residence permits for work, private affairs and reunion in China, and visas issued after March 28, 2000 can all enter China normally. Without these documents, it will be more difficult to apply for a new visa. You need quarantine after you arrive in China, and you can only apply for quarantine after you provide nucleic acid testing as required. Even after the quarantine is lifted, if they are domestic transit personnel, they must be quarantined according to local requirements after the quarantine, plus domestic health tests, otherwise they will not be able to return to China.
Second, the role of epidemic isolation
Now, due to the epidemic, many people need to be isolated when they come back outside, because the role of isolation is very important. First of all, if you come back from other places, you can directly block it and prevent isolated people from staying and spreading in society. Then this is called physical isolation, which can also avoid secondary transmission and the formation of third-generation cases, so it is very important. Isolation can also solve the transmission problem that medical institutions can't solve, and can prevent potential patients from spreading. Once you find symptoms of fever and cough, you should see a doctor in time to avoid undesirable phenomena.
To sum up, if you want to return from abroad, you must meet certain conditions, and the isolation policies in different regions are different. However, the longest isolation time is 28 days. Even if the quarantine is over, it doesn't mean it's really over. It is necessary to carry out certain isolation and health examination. We should actively cooperate with the staff and leave them no trouble.