Health code is a two-dimensional code generated by citizens who declare online through Alipay or WeChat, truthfully fill in their health status and review in the background. Is a person in and out of the local electronic certificate.
Nucleic acid coding is a function of Shanghai's Olympic bid. As an identity certificate for citizens to participate in nucleic acid testing, it is generally only used for code scanning registration during nucleic acid testing. It can be reused within 30 days after one application and screenshot.