New coronavirus pneumonia is more serious than infectious atypical pneumonia because infectious atypical pneumonia occurred in 2003 and is a respiratory infection caused by the SARS virus, with a higher death rate than new coronavirus pneumonia. In contrast, novel coronavirus pneumonia is a respiratory infection caused by a novel coronavirus infection, which is highly contagious and progresses rapidly, and patients can experience significant respiratory failure, while heart damage is also very severe. However, with the improvement of medical conditions, public health and treatment, the death rate of patients has decreased significantly.