The trip card and the health code are two electronic credentials commonly used in life, which can show that they have been to high-risk areas, whether they are in contact with confirmed patients and close contacts, etc., which helps to prevent and control epidemics, etc. The health code can be used to show that you have been to a high-risk area, and whether you have contacted a confirmed patient and close contacts. Health code and trip card is a certain difference, has a different role, is not a substitute for the use of.

Health code:

Through different colors of health codes, we can quickly identify whether a person has passed through the provinces and cities with serious epidemics, and whether he or she has directly or indirectly contacted some infected patients. Then, by analyzing the big data, we can directly target and find some infected people. This is at the early stage of epidemic prevention and control, so the practical significance is still very great. Lehigh Earth Headlines

The health code is not about proving that you are healthy, otherwise you would not be allowed to declare your physical condition and then report it. In fact, it is a QR code similar to an electronic ID card. In addition to reporting your personal health status, it functions mainly to keep track of your movements. For example, you will need to scan your Health Green Code when you enter shopping centers and supermarkets, take public ****cars, subways, planes and trains, and so on.