"1. Health Code" gives yellow code personnel to report to their communities, observe epidemic prevention regulations, live in isolation, and cannot go to public places, crowded places or take public transportation.
2. During nucleic acid detection, it is necessary to observe the order, do a good job of self-protection, keep the distance of 1 m before and after, and carry out nucleic acid detection three times in a row (with an interval of 24 hours).
3. Give the person with the yellow code to the designated institution for three times of nucleic acid detection (once every 24 hours). If the result is negative, it will automatically become a green code. If there is an abnormal health code, register with the local community with relevant certificates and apply for changing the yellow code into a green code.