Pneumonia can be detected by listening to lung sounds, and wet rales can be heard in the case of pneumonia. The diagnosis of pneumonia is determined by a combination of lung imaging, as well as laboratory tests and clinical symptoms. Imaging of the lungs will show new infiltrative shadows, and the clinical manifestations of pneumonia usually include cough and sputum, usually with fever, and in severe cases, shortness of breath, chest tightness, chest pain, and dyspnea. Laboratory tests may show elevated C-reactive protein and, if the pneumonia is caused by bacteria, elevated white blood cells or neutrophils. There are many pathogens of pneumonia, and treatment can be based on the type of pneumonia infection. In the case of pneumonia caused by a bacterial infection, effective antibacterial medications need to be applied. For pneumonia caused by viruses, sometimes there are no specific antiviral drugs, such as novel coronavirus pneumonia.