How long will Qujing turn yellow after receiving the text message?

According to relevant public information, Qujing will turn yellow 24 hours after receiving the text message. 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.