Will the secondary card turn yellow when it goes to Shenzhen?

The primary card and the secondary card are related.

There are two reasons why the health code turns yellow. The first reason is that you move and stay near the key places where confirmed cases and asymptomatic infected people stay, and you may have contact with confirmed cases and asymptomatic infected people, so your health code is included in the scope of yellow code. The second reason is that if you have been to or passed through an epidemic-prone area and stayed for 4 hours, the health code may change and turn yellow or even red. Now there is another kind, that is, in some areas, the whole people are required to participate in nucleic acid, and it will be yellow if they don't participate.