The new virus that has come out is called the new coronavirus. It can be transmitted through the respiratory tract and is highly contagious. Patients with pneumonia infected with novel coronavirus mainly present with fever, malaise, dry cough, while symptoms of upper respiratory tract infection such as nasal congestion and runny nose are less common, and sometimes hypoxia and hypoxia may occur. Severe cases may progress rapidly to acute respiratory distress syndrome, septic shock, metabolic acidosis, and coagulation disorders. The mode of transmission of the novel coronavirus is mainly through droplet transmission and contact transmission. Therefore, it is recommended that people wear masks when going out and avoid going to crowded places for protection. At the same time, people should be vaccinated and undergo nucleic acid testing, and if they have a positive nucleic acid test result, they should go to the hospital for isolation and consultation. In conclusion, the new virus is called the new coronavirus, which is highly contagious, and residents are advised to pay attention to daily protection, get vaccinated as soon as possible, and insist on nucleic acid testing, and go to the hospital for treatment when symptoms are detected.