Why do I get a text message to remind me and accompany me after I get the injection?

It has nothing to do with whether you have been vaccinated or not

Simultaneous and space-time companionship means that my phone number and the confirmed number are in the same time and space grid (range is 800M*800M)*** If the number stays together for more than 10 minutes, and the cumulative stay time of either party's number exceeds 30 hours in the last 14 days, the number detected is a time-space accompanying number. My green health code will turn into a warning yellow code, and I will be marked as a "time and space companion" by the system.