The health code has turned yellow, which indicates that there is some risk of infection, but this does not mean that the health code has turned yellow and infected COVID-19. Relax first, don't worry too much, then call the street immediately, report it, and then follow the local epidemic prevention requirements.
At present, in most areas, as long as the test is done twice every three days, that is, the nucleic acid test is done twice every three days, and the time interval between the two nucleic acid tests is more than 24 hours, the green code can be restored. If both nucleic acid tests are negative, the health code can be released from the yellow code and changed to the green code.