By consulting the functional data of WeChat, it is concluded that the working methods should be further innovated while on-site verification is adopted, and the "three-code joint query" interface should be scientifically designed by using WeChat applet. The parties can enter their own "health code, travel code and vaccination status" through the mobile phone WeChat applet, and upload relevant screenshots. All the data can be directly exported to the table and collected by the town epidemic prevention and control headquarters, which is really efficient and convenient. The zero-contact "three-code joint check" is realized.
Three-code statistical order method not only realizes three-code joint investigation and zero contact, but also is very effective in collecting health data of migrant workers. Inspectors will also supervise residents by comparing the household registration list of the town police station to ensure that no one is missed.