Novel pneumonia is an inflammation of the lungs caused by a novel coronavirus. Mild cases usually resolve on their own in 5-7 days, while severe cases are life-threatening and require joint multidisciplinary consultation and life-support treatment. The official data of fatal cases is updated every day, and there are more than 200 cases at present. Most of them are old and frail people with underlying diseases, so pay more attention to protection and avoid unnecessary going out as much as possible.