The two stations are not far apart, and they are all in the same place, which means that that place is a risk area. Only when you have been to a risk area or have had contact with a confirmed patient will a window pop up.
The pop-up prompt box of health code indicates that you belong to a group with certain risk of infection. According to the pop-up window prompt, you can take the initiative to go to the community and units for testing in time. The health code pop-up prompt box is not confirmed.