Is the vaccine useful for preventing children's pneumonia?

Patient's question:

No

Doctor's answer:

This vaccine primarily prevents diseases caused by pneumococci, which include pneumonia, otitis media, meningitis, and so on. I haven't heard of any side effects. It's mandatory in foreign countries, so the safety is definitely guaranteed. However, in my opinion, every baby has a different constitution, and there may be some reactions after vaccination to some extent. If there's absolutely no reaction after getting vaccinated, that would be the problem.