Novel pneumonia is an acute respiratory infection caused by a novel coronavirus infection, with an incubation period of 1 to 14 days after infection, with initial symptoms of pneumonia appearing in 3 to 7 days. The initial symptoms of novel pneumonia are fever, dry cough, and sore throat, which may be accompanied by malaise, malaise, loss of appetite, and other complications. A small number of patients may have atypical symptoms such as headache, nasal congestion, runny nose, sore throat and diarrhea. Some patients with mild symptoms may also present with only a low fever and mild malaise without pneumonia. Individual patients may experience rapid progression of the disease and early onset of severe symptoms such as high fever and respiratory distress.