Fever during an outbreak requires a visit to a fever clinic to identify the cause; non-novel coronavirus infections do not need to be reported, while confirmed novel coronavirus infections need to be reported. Fever during an outbreak requires a visit to a hospital fever clinic for routine blood tests, chest CT, and a novel coronavirus nucleic acid test to check the cause of the fever and to rule out the possibility of novel coronavirus pneumonia. If the nucleic acid test is negative and no abnormality is found in the lung CT examination, it is necessary to further find out the cause of fever and choose appropriate treatment according to the cause. If the temperature exceeds 38.5℃, antipyretic medication (e.g. ibuprofen, etc.) can be taken under doctor’s supervision, and if the temperature does not exceed 38.5℃, physical cooling can be chosen. If there is a history of high-risk exposure or history of traveling to an infected area, even if the nucleic acid test is negative, you need to be isolated for treatment, avoid contact with other people, and do nucleic acid tests regularly. If the nucleic acid test confirms the diagnosis of novel coronavirus infection, it is necessary to immediately isolate for treatment and report, and it is also necessary to isolate and screen the contacts. Tip: In this article, “new coronavirus pneumonia” and “new coronavirus pneumonia” were renamed to “new coronavirus infection” on December 26, 2022, as announced by the National Health Commission.