Polio was caused by pesticides -- first, lead arsenate, and then DDT. When those were banned, polio went away.

But the paralysis still happened due to other toxins in the environment, and they just changed the name from polio to other illnesses.

In 1956 the AMA (The American Medical Association) instructed each licensed medical doctor that they could no longer classify polio as polio, or their license to practice would be terminated. Any paralysis was now to be diagnosed as AFP (acute flaccid paralysis) MS, MD, Bell’s Palsy, cerebral palsy, ALS (Lou Gehrig’s Disease), Guillian-Barre, meningitis etc etc. This was orchestrated purposely to make the public believe polio was eradicated by the polio vaccine campaign but because the polio vaccine contained toxic ingredients directly linked to paralysis, polio cases (not identified as polio) were skyrocketing…but only in vaccinated areas. Today most vaccine inserts declare paralysis as a potential side effect but “reframe it” as Guillian Barre or simply “paralysis”. This is purposely designed to obfuscate the public’s understanding of what causes paralysis, which is heavy metal poisoning plus vaccine induced autoimmunity……that ends with the body attacking and destroying its’ own nervous system pathways, in an rabid attempt to clean itself of the injected toxins. Guillian Barre and paralysis, as listed vaccine side effects, are also a way to get the public running east looking for a sunset, keeping them as far away as possible from connecting the dots around this medical polio obfuscation. Aluminum and mercury are ingredients in most (if not all) vaccines today and both are proven to cause paralysis and motor neuron destruction………..known as many different names, depending on just how much the science/medical authority figure in the room wants to lead you astray that day..

https://realnewsaustralia.com/2019/02/27/the-real-history-of-polio-20-things-you-didnt-know/

Here is a great year-by-year breakdown of these toxins and the scam that the medical industry perpetuated over two centuries:

https://www.reddit.com/r/conspiracy/comments/jn6skr/polio_wasnt_eradicated_it_was_renamed_vaccines/