Scientifically judge the development of epidemic prevention and control, timely adjust prevention and control strategies, and scientifically and accurately implement control. The information of key personnel collected from various channels will be classified and compared by districts, cities and counties, and pushed in time to accurately identify the target population. The civil affairs departments, streets and communities at the city and district levels arrange special personnel to check and verify the personnel who have been to key areas one by one by 24-hour telephone.

Isolation measures:

The isolation time should be based on the longest infection period of infectious diseases. In principle, patients are not contagious and cannot infect others. In addition to patients with infectious diseases, people who come into contact with patients with infectious diseases should also be observed in isolation. This is called detention.

During the detention, if the contact is sick, it should be isolated and treated immediately. If the contact is not sick, the isolation can be lifted after the observation period expires. The observation period should be calculated according to the longest incubation period of infectious diseases.