Influenza virus is the most common virus in clinical viral pneumonia, followed by parainfluenza virus, rhinovirus, adenovirus, coronavirus and some enterovirus infections, such as coxsackie virus, echo virus, and pulmonary inflammation caused by herpes simplex, chickenpox, zoster, rubella, and measles virus infections, Among them, pneumonia is mainly caused by respiratory syncytial virus infection in infants. This disease tends to occur in the alternate seasons of winter and spring, and will have a certain prevalence. It needs timely antiviral and symptomatic treatment.