Neocoronavirus generally refers to novel coronavirus pneumonia, and the virus may remain in rooms where patients with novel coronavirus pneumonia have stayed. Since novel coronavirus pneumonia is contagious and can be spread through the respiratory tract and direct contact, the novel coronavirus can attach itself to surfaces and remain in the room where the patient has stayed. If you want to eliminate the novel coronavirus in the room where the patient has stayed, it is recommended that the room be ventilated by opening the windows to keep the indoor air circulating. Follow up by disinfecting the room with a chlorine-based disinfectant and replacing items used by the patient to eliminate any residual novel coronavirus. It is recommended not to live in a room where a patient with new coronavirus pneumonia has lived for a short period of time. If the patient has already lived in the room, it is recommended that the patient observes whether he/she has any abnormal symptoms such as fever, cough, etc. If he/she has such symptoms, it is recommended that he/she goes to the hospital in a timely manner to determine whether he/she is infected with the new coronavirus. Tip: “New coronavirus pneumonia” and “new coronavirus pneumonia” mentioned in this article were renamed to “new coronavirus infection” on December 26, 2022, as announced by the National Health Commission.