The Polio Vaccine
The pesticide DDT used in the 1940s-50s to fight malaria, was also sprayed on children to prevent polio. It caused polio-like paralysis instead. The first polio vaccine's rollout was disastrous.
The pesticide DDT used in the 1940s-50s to fight malaria, was also sprayed on children to prevent polio. It caused polio-like paralysis instead. The first polio vaccine's rollout was disastrous.