How long does it take to turn yellow after receiving the message from 12345?

Turn to yellow code immediately. When you receive a short message that you are sure to be a space-time partner, the health code will immediately change from green to yellow. At this time, it is necessary to report to the community, neighborhood Committee, unit or hotel where you live in time. Then immediately carry out nucleic acid detection, which needs to be completed twice within 72 hours, with an interval of 24 hours. We need to be isolated at home until the results come out.