1, self-reported health information appears: people with fever, shortness of breath and respiratory symptoms.
2. Persons within/0/4 days after the confirmed cases are cured, persons within/0/4 days after the asymptomatic infected persons are released from isolation, and persons within/0/4 days after the suspected cases are excluded.
3. The confirmed cases in COVID-19 were found in the local area, and were divided into control areas, and the health codes of the people in the control areas were given yellow codes.
4. The health code of the person suspected to be consistent with the trajectory of confirmed cases in COVID-19 is updated to yellow code. For example, the health code of sub-secret contacts and the health code accompanying time and space will be given yellow codes.
5. I went to the middle and high risk areas of the epidemic, such as the regional investigators of the epidemic, and the health codes of the personnel in the middle risk areas in the past 14 days were given yellow codes.
6. All-round nucleic acid testing is needed, but without nucleic acid testing, the health code will be given a yellow code.
7. The person whose personal mobile phone number and identity information match the yellow code.