The normal range of body surface temperature is between 36-37.3°C. If the body temperature exceeds 37.3°C, it is considered feverish. There are many reasons for fever, but the common reasons are related to the surrounding environment. So with the current epidemic, there are many people who appear nervous and anxious because their body temperature is higher than 37.3°C or more. Elevated body temperature also needs to be analyzed in conjunction with clinical symptoms together, such as combined manifestations of sore throat, cough and headache, chest tightness and chest pain, which require further refinement of relevant tests.