No vaccines go through rigorous testing and monitoring for efficacy or safety. There is no historical baseline for success. Every single vaccine has gone through the exact same level of scientific and institutional rigor that the Covid "vaccines" were given.

The pneumonia vaccine hovers around 10%, here's a paper about the 2018 version having 13% effectiveness.

And here's an article about how the flu vaccine in 2022 was 16% effective. Find another source, it's just the quickest article I could grab. https://www.nytimes.com/2022/03/10/health/flu-vaccine-effectiveness.html

The vast majority of things we are told about germ theory and virus theory have yet to be proven. It's like evolution- just declared as "science", despite the physical evidence and internal logic making it abundantly clear that it is just a fantasty.