Health code 24 hours. It's blue, which stands for sm.

Blue represents people with normal body temperature. The health code in each region is different, and the health code in some regions is blue. Health code blue represents people with normal body temperature, and red represents key people with fever. Health code can collect personal historical data (track, consumption, etc. ) and generate QR codes of different colors. Although this can't directly determine whether you are sick or not, it can provide some data reference for the early prevention and control of the epidemic, which has important practical significance.