Go to the community to register first, don't hide it, remember to bring your ID card and explain to the community when you went to the airport and how long you stayed. The community will deal with it according to the specific situation.
Then take the community note to the designated place for nucleic acid testing. Be sure to go to the place designated by the community, otherwise it is useless to take the exam 100 times.
Finally, isolate yourself at home for 14 days and go to the designated place three times a week to do nucleic acid.
If "two tests in three days" have been completed, that is, two nucleic acid tests have been done, and the time interval between the two tests is more than 72 hours, and the results are both negative, the system will remove the yellow code and turn it into a green code.