Novel coronavirus is a viral infection, most patients have mild symptoms of upper respiratory tract infection, which is also known as cold symptoms, while some severe cases may develop acute respiratory distress, or systemic multi-organ failure, resulting in death, the rate is about 8%. There is no need to be too nervous and worried when you have a novel coronavirus infection, as most patients are mild. It is important to avoid going to crowded places, because the current epidemic is very serious, you must do a good job of personal protection, wear a mask in public places, wash your hands regularly, pay attention to good hand hygiene and dietary hygiene, pay attention to opening windows and ventilation in the home and work environment, and pay attention to wearing a mask when walking and in crowded places.