The main manifestation of the new coronavirus infection is fever, so this is a time when people are generally afraid if they have a fever for two or three days in a row. But in fact, fever is a common clinical sign, which can be seen in a variety of diseases, such as infectious diseases. The common respiratory patients with chronic obstructive pulmonary disease and bronchodilatation, and patients with inflammation in the lungs stimulated by colds, can also experience fever. So after two or three days of fever, we should go to the hospital in time for identification and diagnosis. Specifically as follows: 1, if the blood is increased, may be a bacterial infection, to give the appropriate antibiotic treatment; 2, if the blood is normal or lymphocyte increase, this low fever accompanied by body aches and cough, sneezing, runny nose may be upper respiratory tract infections, or colds; 3, if the fever itself after the inflammation of the lungs, and at the same time the blood is not increased, the relatives of the family have had mycoplasma infections, you can do mycoplasma detection. Mycoplasma infection, you can do mycoplasma testing. So fever for two or three days may be the new coronavirus infection, the patient to do the nucleic acid test of the new coronavirus can be clearly diagnosed. Source: Dr. Yurai