When you have novel coronavirus pneumonia, there are almost no cold symptoms if pneumonia has already occurred. This infectious disease is called plague in Chinese medicine, which is the evil of epidemics, so the onset is faster compared to the common cold. Generally the first three days of cold can appear sneezing, runny nose, throat discomfort, gradually occur headache, fever, or sore throat, cough symptoms, but most cases of pre-new crown pneumonia symptoms are still dominated by fever, cough, dyspnea and general weakness. So the symptoms are more concentrated breathing difficulties and lack of oxygen, these are caused by the inflammatory storm in the lungs, there is a lot of exudation in the body, including now when the autopsy found that the lungs of the deceased or filled with a lot of mucus to hinder breathing, so there is still a relatively large difference with the common cold.