The first is to reduce the frequency of going out and avoid overlapping with confirmed patients. If you find yourself in the same building as the confirmed cases in COVID-19, you must reduce the number of outings and avoid contact with patients at the same time and space. Only in this way can we ensure our own safety. If there is a confirmed patient in the same building, it is necessary to disinfect it in time, not only in the home of the confirmed patient, but also in the corridor, downstairs and elevator. Prevent the spread of sewer pipes. In view of the special situation of infection in the same building, experts also suggest that you do a good job in the spread of sewer pipes. Because the virus may spread through pipes, experts call for ensuring a certain amount of water in the sewer pipes as much as possible to cut off the spread of the virus and ensure our safety. Also pay attention to minimize going out and reduce the same trajectory as the confirmed case. In this way, we can ensure our own safety to the maximum extent. Moreover, be sure to disinfect more and wash your hands frequently. Do more exercise at home.