Based on the electronic health code, Shenzhen implements the dynamic management of "red code, yellow code and green code".
It is reported that on the basis of the original electronic health code, citizens can fill in the Questionnaire on the Epidemiological History of novel coronavirus Infection in Medical Institutions (hereinafter referred to as the Epidemiological Questionnaire) online, and the electronic health code will display three colors of "red", "yellow" and "green" for medical reference.