Is it possible for a mobile phone number to receive information about the epidemic trajectory of two people?

It's possible. Two people's travel codes can be on the same person's mobile phone. This situation is basically that parents apply for health codes and travel codes instead of their children. The child does not have a mobile phone, so it is impossible to screen and locate the child's itinerary. However, children spend most of their time at school or with their parents, allowing parents to apply for a health code and itinerary code instead of their children, but binding their ID numbers.