It's normal because of the emergency. During the epidemic, in order to investigate secret contacts, many people received calls from the epidemic prevention and control center for investigation.

As long as you have been to high-risk areas and then returned to your place of residence or other places, big data will be fed back to the government, but only the places and telephone numbers you have been to, and then the Social Security Institute will send someone to call to ask about your situation.

Under normal circumstances, you will only be asked to provide information such as your ID number and specific place of residence when you control or call the staff's jurisdiction. In fact, if you don't trust yourself, you should report it to the community. You have to do nucleic acid, and you have to isolate it at home.