What are health code, trip code and nucleic acid code respectively?

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. It was a man who came in and out of electronic certificate locally.

The itinerary code is a public welfare itinerary inquiry service jointly launched by China ICT Institute, China Mobile, China Telecom and China Unicom under the guidance of the Ministry of Industry and Information Technology.

"Nucleic acid coding" is a function of Shanghai "same standard". As the identity certificate for citizens to participate in nucleic acid testing, it is generally only used for scanning code registration when collecting nucleic acid, and can be reused within 30 days after one application and screenshot.