The common cold has the possibility of self-healing, manifested as coughing, nasal congestion, sneezing, etc. Most of them do not cause complications, such as pneumonia, myocarditis, etc.. In addition to the common cold symptoms, the infection caused by novel coronavirus may also cause difficulty in breathing, persistent fever, etc. Preliminary manifestations need to go to the hospital for chest CT, nucleic acid testing, etc. to confirm the diagnosis. In severe cases, acute respiratory failure, acute respiratory distress syndrome, coagulation dysfunction and other life-threatening systemic organ failure may occur.