Community-acquired pneumonia is not a serious disease, but community-acquired pneumonia can progress or worsen, leading to serious lung infections, systemic inflammatory response syndrome, or sepsis, among other serious diseases. Therefore, community-acquired pneumonia needs to be taken seriously. Community-acquired pneumonia is mainly caused by Gram-positive bacteria and is characterized by a simple cough, sputum or fever, and in some cases, cicatricial symptoms such as runny nose, sneezing and sore throat. Most of the patients will have high blood count or viral infection, and antibiotics or antiviral drugs will be applied according to the results.