What's the significance of receiving the prompt of accounting from Xi 'an Epidemic Prevention Headquarters twice within 72 hours?

The expert responded, on the one hand, don't be nervous. "Time-space companion" means that you may have had direct or indirect contact with infected people in COVID-19 recently; On the other hand, we must pay attention to and cooperate with the following operations:

First, immediately take the initiative to contact the community, unit or hotel, inform the news in time, and implement epidemic prevention and control measures such as nucleic acid detection as required, and do a good job in personal protection.

Second, do health monitoring. If you have symptoms such as fever, dry cough, stuffy nose, runny nose, fatigue, sore throat, and decreased sense of smell (taste), you should go to a medical institution in time and inform the doctor. Please take personal protection during medical treatment and do not take public transport.