The main self-funded vaccines for pneumonia are currently the 13-valent pneumonia vaccine and the 23-valent pneumonia vaccine. Both of these vaccines are national class II vaccines and are self-funded and voluntary. If the conditions of the vaccinated person allow, it is recommended that vaccination is necessary. In particular, some high-risk groups should be vaccinated, such as people who have had pneumococcal infections, people with HIV infection, and people with chronic diseases, including chronic obstructive pulmonary disease, diabetes, and hypertension. Streptococcus pneumoniae infection can lead to pneumonia, meningitis, otitis media, sepsis, and even infectious shock. There are more than 90 types of Streptococcus pneumoniae known clinically, and the 13-valent pneumonia vaccine can prevent 13 of them, while the 23-valent pneumonia vaccine can prevent 23 of them.