First thing that comes to mind: Tetanus cases were nearly nonexistant and skyrocketed to a "new normal" after a vaccine was created. Tetanus rates had actually declined exponentially in the decades leading up to the creation of the vaccine simply due to better sanitation. There's no proof the vaccine prevents tetanus or ever did.

I watched a 4 hour long testimony by a former vaccine researcher who had been working with the government since the 50's I believe. The video seemed old if I recall, maybe from the 90's or 2000's. That testimony was like a bottle of red pills regarding the history of the vaccine industry. It runs sooooo much deeper than Autism etc.. I can't find it, maybe someone knows the video and can provide a link?