Jeff Swann on Nostr: Polio was caused by the use of lead arsenic pesticides which were developed in ...

Polio was caused by the use of lead arsenic pesticides which were developed in response to the gypsy moth. The pesticide was discontinued & cases of polio dropped nearly to zero before the vaccine was ever rolled out. But blaming a virus allowed companies to escape liability & push a new product as a way to "save the day."