Wechat health code The QR code after each nucleic acid is different.

It will be refreshed every day. The health code QR code is mainly used to display the health status of the code holder, which is generally updated in real time and also displays the current time. Therefore, if you go to high-risk areas or come into contact with high-risk groups, the QR code of the health code will change. At this time, you need to report to the local, village and town community workers in time, and then cooperate with the staff to carry out nucleic acid testing.