“The only [vaccines] that have been safety tested in a randomized placebo-controlled trial is the COVID vaccine ... So we do not know whether those vaccines are causing downstream effects.”
What FactCheck.org found
Vaccines are always tested for safety, but not always with a saline placebo. Safety information also accumulates over time with use as vaccines are monitored.
Their words, from the summary they publish with the rating.
In short
Robert F. Kennedy Jr. (HHS Secretary) made this claim around 16 January 2026. FactCheck.org (United States) looked into it and published its finding on 27 April 2026, 101 days later. Its rating was “Misleading”.
Robert F. Kennedy Jr. has 55 checked claims in this archive. Fact-checking organisations rated 27 of them false or fake, 27 misleading or mixed and 0 true.
Where the claim appeared
Links recorded by FactCheck.org. Some posts may have been deleted since.
This check was done by FactCheck.org, not by DoesItStand. We list it so you can find it. Their full evidence and reasoning are in their article.