Repeated fever may be pneumonia, COVID-19. The typical manifestations of COVID-19 are fever, dry cough, fatigue, and severe patients may have difficulty, even respiratory distress syndrome. However, some patients with COVID-19 can simply show fever symptoms, so repeated fever may be COVID-19. In addition, it should be noted that COVID-19 is an acute respiratory infectious disease. If the patient has had fever for a long time, such as more than two months, the fever is not necessarily COVID-19, but other diseases should be checked first. For example, tuberculosis, or connective tissue disease or vasculitis and other related diseases.