In some places, people who don't attend full-time nucleic acid testing on time will be reminded of the health code by pop-ups. There may be many reasons for not taking part in all nucleic acid tests, such as people going on a business trip and delaying the time of nucleic acid testing because of something.
Close contacts are high-risk groups, and the general health code will be red team. High-risk groups will generally be isolated centrally or at home, and will not run around outside.
Therefore, it is just a pop-up reminder, not a high-risk group.