Polio was man made

[Vette guy]

https://threadreaderapp.com/thread/1005 ... 63361.html

13. A new pesticide was invented in 1892 called lead arsenate near Boston, Mass to combat the spread of a foreign invader—the gypsy moth. It combined lead and arsenic together because it couldn’t be easily washed off.
deq.state.va.us/Portals/0/DEQ/…

14. If you’re interested, I talk about this whole story in my book, “The Moth in the Iron Lung.” You can get it here: amazon.com/Moth-Iron-Lung…

26. The question is if viruses and bacteria COULD cause poliomyelitis, why then, and not before? Why did epidemics of polio suddenly appear in the 1900s when they did not exist before?

36. This is why the injected Salk polio vaccine worked so poorly. It created antibodies for only one of many viruses that could paralyze, and it created antibodies in the blood—a useless defense against an intestinal infection.
37. As lead arsenate fell out of favor because of its toxicity, a new set of synthetic pesticides came into play and made this problem much worse.

39. By 1952, it was clear many of the insects were becoming DDT-resistant, and its toxicity began to concern people. They began to use safer pesticides and, with lead arsenate also fading out of the picture, infantile paralysis began to disappear.

45. By this time (1963), poliomyelitis (aka “polio”) had all but disappeared. As it turns out, neither of the vaccines were actually necessary. The Salk vaccine was horrible at actually preventing paralysis, and the Sabin vaccine came too late to make a difference.
46. Today, countries that use toxic pesticides still struggle with infantile paralysis, aka polio. Extremely aggressive oral polio vaccine use may help control poliovirus infections...