The epidemic of pneumonia refers to acute respiratory infections that occur mainly in the lungs and generally refers to atypical pneumonia, Middle East respiratory syndrome, and novel coronavirus pneumonia, all three of which belong to a large group of coronaviruses. Because they are epidemics all belong to acute respiratory infections, pneumonia epidemics have the characteristics of fulminant epidemic, wide spread, respiratory droplet transmission is the main route of transmission, winter and spring is the high incidence and have a susceptible population. Common respiratory symptoms are nasal congestion, runny nose, sore throat, cough, fever, etc., and it is easy to cause hypoxia, respiratory distress, severe cases will rapidly progress to acute respiratory distress syndrome, multi-organ failure, the rate of serious illness, mortality are higher than the general respiratory virus.