Atypical pneumonia is also known as SARS. SARS was caused by SARS coronavirus infection, and this new type of coronavirus pneumonia is actually also caused by coronavirus infection. So far, the number of cases of this new type of coronavirus pneumonia far exceeds the number of cases in the year of SARS. However, according to the clinical data available so far, the death rate of patients infected with this new coronavirus pneumonia is smaller than that of SARS, but there is still no specific conclusion on the exact number of cases, and it is possible that there will not be any clear statistical indicators until after the epidemic is over. However, in general, the number of cases of novel coronavirus pneumonia is higher than that of SARS, but most of the patients are less sick than those of SARS. Source: Dr. Yau Lai