I didn't go to Lingui. Why did I receive a short message from Lingui for disease control?

Short messages received from epidemic prevention and sent to recent local cases and their close contacts (close contacts) may overlap spatial trajectories at the same time. Please report to your community, neighborhood committee, unit or hotel. Put on a mask and immediately go to the nearest nucleic acid testing institution (you can check it in Chengdu Guanwei) for nucleic acid testing. Don't take public transport on the way. Go home before you get a negative result