Why does the health code turn red?

When you come back from high-risk areas in China and overseas, or travel through COVID-19 with infected people at the same time, your health code will be automatically converted.

Depending on your exposure risk, the health code will be changed to "yellow code" or "red team". The yellow code indicates the need for home isolation, and the red team indicates the need for centralized isolation.

When the health code turns red, children's travel will be restricted. If you want to change it back, you can stay in the risk-free zone for 14 days and report the formation dynamics on time every day. So the red health code can be changed back.

In fact, the "health code" of Alipay and WeChat is an exclusive QR code generated by comparing the epidemic prevention big data of the communications, transportation, public security and health and wellness committees with the health data declared by individuals.