Polio Pioneers
The Polio Pioneers have been described as “the largest clinical trial in history,” proving that the Salk polio vaccine was safe.
The Polio Pioneers have been described as “the largest clinical trial in history,” proving that the Salk polio vaccine was safe.
Gregory Poland, MD is well known for many things that he has done in his long career as a pediatric infectious disease specialist and vaccinologist and for being misquoted by anti-vaccine groups.
Unlike vaccine efficacy, vaccine effectiveness is used for studies using real world conditions.
Vaccines work very well, with most vaccines having over 90 to 95% effectiveness.