Polio Vaccine
Polio Survivors Recount Contracting The Disease
![Wellcome_polio_vaccine_Wellcome_L0033971](http://witnify.com/wp-content/uploads/2015/02/Wellcome_polio_vaccine_Wellcome_L0033971-149x150.jpg)
Polio is an infectious disease spread from person to person. Polio can result in severe muscle weakness, most commonly involving the legs. In the 1950s, Jonas Salk created a polio vaccine that was used to vaccinate children across the United States. In this video, polio survivors recall coming down with … Continue reading