The meaning of health code
The function of health code is not to prove that you are healthy, otherwise you are not allowed to declare your physical condition and then report it. It is actually similar to the QR code of an electronic identity. Its function is not only to report personal health, but also to master your action track. When we see that the color of our health code has changed, we should know where we are going.
Someone has been diagnosed as COVID-19, and it's bad luck for you to watch yourself turn red, because you can't go in and out of the community with a red health code, go shopping or travel at will, which is equivalent to putting an eye-catching label on your forehead, and you are a dangerous person in high-density contact with patients with infectious diseases.