Who should I deal with the red and green codes of the health card alternately?

The community is only responsible for registration, and the specific practice should be in the epidemic prevention headquarters of the district or street. If you belong to an area where infected people or close contacts have been to you, the health codes of all local people will change color. In this case, if you want to change the color of your health code, you can go to your community, but it usually doesn't take long, and the color will automatically change back.