The "Henan Health Code" system has the characteristics of "convenient declaration, universal application in the whole province, cross-provincial mutual recognition and classified control", which can generate red, yellow and green QR codes, classify residents into high-risk, medium-risk and low-risk personnel, and take targeted control measures.
"red team" is a high-risk group and needs strict control;
The "yellow code" is a medium-risk person, and it is necessary to consciously accept community isolation observation;
"Green code" is a risk-free person, with normal body temperature measurement, and can travel and return to work normally.