Pneumonia due to novel coronavirus infection, i.e., the formation of lung inflammation due to a novel coronavirus infection, is called pneumonia due to a novel coronavirus infection, and the causative microorganism of pneumonia is mainly a novel coronavirus, which belongs to the coronavirus family and is related to the SARS and Middle East respiratory syndrome viruses that have been exposed before, but many places are still different. Since this virus can cause human-to-human transmission, it has been classified as a legal category B infectious disease and is prevented and controlled in accordance with category A infectious diseases, which are transmitted mainly through respiratory and contact transmission.