What should I do if Zhengzhou turns yellow back to Zhoukou?

Zhengzhou Huizhoukou Huangma takes the measures of nucleic acid detection twice every three days and home health detection for seven days, and then transcodes it after completion. According to the relevant data, it is found that people in other counties and cities in the city where the high-risk area is located are coded in yellow, and the measures of nucleic acid testing twice every three days and home health testing for seven days are taken, and then transcoding is completed. Zhengzhou back to Zhoukou must report to the village (community) and unit 3 days in advance, and hold the green code of health code and negative certificate of nucleic acid test within 48 hours.