Generally, it is only worn and will not change color. Take the announcement of Huairou District Government in Beijing as an example: The Municipal Bureau of Economic and Information also reminded that if citizens only pass through medium and high-risk areas, the health code will not change color. If you have been to high-risk places such as Xinfadi recently or have had close contact with relevant personnel, Health Bao will display the yellow code status of "home observation" after verifying and bringing these personnel into community management.
One of the operating mechanisms of health code: interoperability and linkage.
In order to promote the mutual recognition of "health code" in different places, the national comprehensive government service platform provides three ways to realize cross-provincial mutual recognition and sharing. The first way is to add the cross-regional mutual recognition function to the local "health code" through the cross-regional epidemic prevention and health information data sharing without changing the existing local "health code".
Second, the local "health code" is connected with the national comprehensive government service platform "epidemic prevention information code", and the national comprehensive government service platform "epidemic prevention information code" is used as the intermediary to realize the mutual recognition of cross-regional "health code".
Thirdly, in areas where there is no local "health code", the "epidemic prevention information code" of the national comprehensive government service platform can be directly adopted, and at the same time, combined with local epidemic prevention and health-related information, cross-regional interoperability and mutual recognition can be realized.
Refer to the above? Huairou District Government of Beijing-The health code will not change color when it passes through the middle and high risk area.