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Does herd immunity matter?

Herd immunity protects vulnerable people by limiting disease spread. Learn why vaccines matter—even if they’re not perfect—and what happens when rates drop.

Is the RSV vaccine safe during pregnancy?

RSV vaccines during pregnancy are safe and protect newborns. Learn how they work, debunked claims about preterm birth, and what the latest studies show.

Is thimerosal in flu shots dangerous?

Thimerosal in flu shots isn’t dangerous—learn how it's different from toxic mercury, what studies show, and why vaccines are not linked to autism or brain harm.

Why aren’t they doing vaxxed vs unvaxxed studies?

Despite claims, large studies comparing vaccinated vs. unvaccinated children show vaccines don't harm kids—and do protect them from serious disease.

Has ACIP made bad vaccine decisions?

ACIP is accused of approving too many untested vaccines—but the facts show a careful process, ethical trials, and a schedule built to protect kids, not overwhelm them.

Was ACIP riddled with conflicts of interest?

RFK Jr. disbands ACIP over alleged conflicts of interest—but ACIP already follows strict transparency rules. Here's what the public needs to know about vaccine oversight.

Does the MMR vaccine cause measles?

A viral tweet falsely claims MMR causes measles. Learn why vaccine inserts list outdated risks and how MMR safely prevents, not causes, measles outbreaks.

Is the media finally getting wise to COVID vaccines?

Newsmax misleads on COVID vaccines. Learn the facts about natural immunity, myocarditis, long COVID, vaccine safety, and how injury compensation works.

Just the Facts Newsletter: Correcting this week's disinformation

Sign up to get a weekly rundown of the latest vaccination facts as we debunk the latest false vaccination claims making the rounds on the internet.


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