The distinction between the common cold and the new coronavirus infection can be analyzed from the following aspects. 1. from the etiology, the common cold is mostly caused by the invasion of viruses, bacteria, mycoplasma or chlamydia. The new coronavirus infection is a newly discovered coronavirus, which belongs to the same class of virus as SARS. 2, infectious, the common cold is generally not infectious. The new coronavirus is highly contagious and human-to-human, and is currently a category B infectious disease managed by the state. 3. susceptible people, the common cold occurs mostly in the immune system, the elderly, pregnant women and children. Symptoms and prognosis: The main symptoms of the common cold are nasal congestion, runny nose, sore throat, cough, fever, etc. It usually heals in 3-7 days and the CT of the lungs is normal, with few complications. Novel viral infections mainly invade and involve the respiratory tract. Novel coronaviruses mainly cause novel coronavirus pneumonia, and their lung CT can show multiple ground glass and infiltrative shadows. Severely ill patients progress rapidly to acute respiratory distress syndrome and multiple organ failure, and the mortality rate is currently between 2.3% and 2.4%.