Weakness may be a symptom of Neocoronavirus, or it may be caused by other physiologic or pathologic factors that require prompt medical attention. If you experience unexplained weakness, it may be a sign of Neocoronavirus infection. Weakness is one of the symptoms of neocoronavirus infection, and can occur within a few days of neocoronavirus infection, so neocoronavirus infection is possible. However, it is not possible to diagnose a patient with Neocoronavirus infection only by the symptoms, but it is also necessary to combine the results of nucleic acid tests. Physiological factors such as fatigue, poor rest, etc. can also cause these symptoms, as can colds and other illnesses. It is recommended to consult a doctor for blood tests, nucleic acid tests and other tests in order to make a clear diagnosis and take targeted treatment.