Name one thing be said about the vaccines that turned out to be false?

This is just a limited selection (not even covering all the false claims of Kennedy, through the anti-vax organization he runs, identified in the cited source articles), because there have been so many lies, about so many vaccines (including using lies about one vaccine to discourage use of a completely different vaccine.)

His organization misrepresented the findings of a Lancet study to claim that vaccine-derived COVID-19 immunity “becomes negative”. [0]

His organization has circulated false claims about tetanus vaccines being part of a conspiracy to render women infertile. [1]

His organization spread debunked claims about MMR vaccines and autism in the black community as part of an effort to discourage COVID-19 vaccine use in the black community. [2]

His organization misrepresented a government study to spread the false claims that the flu vaccine made COVID-19 infection more likely, as propaganda against the flu vaccine. [3]

[0] https://www.factcheck.org/2023/03/scicheck-posts-make-false-...

[1] https://www.factcheck.org/2022/07/video-revives-old-debunked...

[2] https://www.factcheck.org/2021/03/scicheck-rfk-jr-video-push...

[3] https://www.factcheck.org/2020/04/no-evidence-that-flu-shot-...