Media Bias Fact Check (MBFC) publishes daily vetted fact checks from verified IFCN-approved sources. Each claim is independently reviewed for accuracy and context.
Claimant: Robert F. Kennedy Jr.
Claim: The COVID-19 vaccine is the only childhood vaccine that was tested in a placebo-controlled trial.
Rating: FALSE
Explanation: Multiple childhood vaccines were originally evaluated in placebo-controlled trials, including vaccines for polio, chickenpox and rotavirus. FactCheck.org notes that claims to the contrary often rely on an unusually narrow definition of what counts as a placebo. (factcheck.org)
Date: 09/28/2026
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Last Updated on September 28, 2026 by Media Bias Fact Check