Health codes are based on real data and can be generated by citizens or people who have returned to work through online declaration and background audit. As an individual entering and leaving electronic certificate locally, the QR code can be declared once, which is universal in the whole city. The promulgation of the Health Law aims to make the resumption of work more accurate, scientific and orderly.
By the end of 2020, the applet health code has served more than 800 million users and displayed the code for more than 20 billion times, which has played a considerable role in fighting the epidemic. In addition to the health code, there is also epidemic prevention in travel itinerary. In a whole year, the travel card has served more than 550 million users, and the cumulative number of visits has exceeded 654.38+09 billion. Because of the popularity of travel cards, the inspection and traffic efficiency of first-line quarantine points has been effectively improved.