Only from the clinical symptoms, common cold, influenza and novel coronavirus infection are very similar, all three diseases can appear fever, dry cough, general malaise, lack of energy, loss of appetite, general muscle aches, and various respiratory symptoms, such as nasal congestion, runny nose, and abdominal pain, diarrhea, headache, dizziness, etc. Therefore, the diagnosis of novel coronavirus also depends on pathogenesis. Currently, kits for novel coronavirus are available in fever clinics throughout China, and suspected cases that meet the symptoms can be tested for free.