rich1.0Jeff Swann (npub1aj…ftppj)https://yabu.me/npub1ajv7m32k0cpgzha32qszsh304qusjvwwmavus0ttktzldms4xzusuftppjnjumphttps://yabu.mePolio 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."