A plain-language look at how the trials behind the childhood vaccine schedule were designed, why inert-placebo controls matter, what the aluminum data does and does not show, and why direct, gold-standard studies are still worth demanding.

The Salk polio vaccine trials are frequently cited as the gold standard of placebo-controlled research. Yet a review of the original trial documents and contemporaneous reports reveals that no true inert placebo group was used. This article examines those primary sources directly, allowing readers to evaluate the trial design for themselves, and explores how modern censorship mechanisms have limited public access to information that challenges the accepted historical narrative.