Guangzhou key code color change rules What are the color change rules of Guangzhou key code?

1. If someone in your community is infected, your health code may turn yellow or red.

2. If you have ever been to a high-risk area, the health code will automatically turn yellow or red.

3. If you take public transportation and someone in the same car is suspected or diagnosed with infection, then as a close contact, your health code will turn red.