He Yi Healthy official website

A health code usually refers to a two-dimensional code containing personal health information. Three of the codes are: 1. The green code indicates that the individual is in normal physical condition and can pass freely. 2. Yellow code: indicates that individuals need home observation or medical observation. 3. red team: It means that the individual has been diagnosed as a COVID-19 patient or has symptoms and needs isolation treatment. The combination of these three codes is the combination of health code and three codes.