The diagnosis of novel coronavirus infection can only be confirmed by a nucleic acid test at the hospital. Novel coronavirus infection is classified as mild or severe, mainly manifested by fever, cough and malaise. Some mild cases can recover on their own and require self-protection and isolation at home. Those with more severe symptoms need to be seen at a hospital fever clinic in a timely manner. Due to the severity of the current outbreak, you should avoid going out as much as possible. If you must go out, you should wear a mask for protection and reduce contact with objects in public areas, such as door handles and seats.