this post was submitted on 24 Apr 2026
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In a Congressional hearing on Wednesday, Sen. Bernie Sanders (I-Vt.) directly confronted anti-vaccine Health Secretary Robert F. Kennedy Jr. on his rejection of germ theory—the unquestionable scientific idea that specific pathogenic microbes cause specific diseases. After Kennedy defended his fringe view, Senator Bill Cassidy fact-checked and debunked Kennedy’s denialist arguments in real time.

The exchanges mark a rare instance in which Kennedy’s dismissal of germ theory has been raised in such a high-profile public setting, in this case, a hearing of the Senate Committee on Health, Education, Labor, and Pensions. Kennedy, who has no background in science, medicine, or public health, is well known as an ardent anti-vaccine activist and peddler of conspiracy theories. But his startling rejection of a cornerstone theory in biomedical science has mostly been underreported.

As Ars Technica reported last year, Kennedy wrote about his germ theory denialism explicitly in his 2021 book The Real Anthony Fauci. In it, Kennedy maligns germ theory as a tool of pharmaceutical companies, scientists, and doctors to promote the use of modern medicines. Instead of accepting germ theory, Kennedy promotes a concept akin to the discarded terrain theory, in which diseases stem not from germs, but from imbalances in the body’s inner “terrain.” Those imbalances are claimed to be caused by poor nutrition and exposure to environmental toxins and stressors. (In his book, Kennedy erroneously labels this as “miasma theory,” but that is a different theory that suggests diseases derive from breathing bad air, vapors, or mists from decaying or corrupting matter. The idea was supplanted by germ theory, while terrain theory was never widely accepted.)

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[–] m3t00@lemmy.world 2 points 38 minutes ago

people let him off easy because he can't talk well. heard he's invested in supplement sales. like snake oil guy of yesteryear

[–] RabbitBBQ@lemmy.world 4 points 3 hours ago (1 children)

Such a tragic family history with so many promising people lost over the years. Kind of makes you question survival of the fittest.

[–] partofthevoice@lemmy.zip 1 points 1 hour ago* (last edited 1 hour ago)

Alligators looking pretty darn close to how they did millions of years ago is a nice indicator for survival of the fittest. I think fittest probably involves social paradigms with humans, and being recognized as fit might present an interesting intellectual challenge where you are more likely to find yourself surrounded by sycophants who soonest reenforce your own bias. Perhaps even, you’re looking at decades of that toxin in its effects. But, I am not a researcher on this field so I digress.

[–] AccoSpoot1@lemmy.world 16 points 5 hours ago (1 children)

Literal medieval doctor levels of medical understanding.

[–] UnderpantsWeevil@lemmy.world 3 points 4 hours ago

But he still gets to keep his job, because Congress won't remove him

[–] betanumerus@lemmy.ca 13 points 6 hours ago* (last edited 6 hours ago) (1 children)

Quite frustrating that the efforts of millions worldwide with cold evidence would be ignored and dismissed by one shortsighted charlatan. The world can only mock him for trying to screw his own citizens.

[–] UnderpantsWeevil@lemmy.world 5 points 4 hours ago

one shortsighted charlatan

Way more than just one

[–] WizardofFrobozz@lemmy.ca 11 points 7 hours ago

Debunking doesn’t matter in the US in 2026. Bullets do.

[–] regdog@lemmy.world 16 points 8 hours ago

Oh no, facts.

Surely this will be the undoing of JFK Jr.

[–] tgirlschierke@lemmy.blahaj.zone 29 points 18 hours ago
[–] NotMyOldRedditName@lemmy.world 31 points 20 hours ago* (last edited 20 hours ago) (1 children)

So he'll eat a Listeria salad and an Ecoli burger, washed down with some Girardia river water and think it was his bodies imbalance that made him sick???

[–] leftzero@lemmy.dbzer0.com 11 points 12 hours ago (1 children)

Yes. This guy literally eats roadkill. And brags about it.

[–] KyuubiNoKitsune@lemmy.blahaj.zone 1 points 6 hours ago (1 children)

Technically, if the roadkill is fresh, there's nothing wrong with eating it.

[–] NotMyOldRedditName@lemmy.world 2 points 2 hours ago

If you were a hunter, I imagine (I'm not), they would watch the animal first to see if it was acting sick?

Even if you were the one that hit it, that's a substantial increase in risk I think not having been able to observe it?

[–] uberdroog@lemmy.world 50 points 22 hours ago (1 children)

How is that even something I have to Read? Fuck these morons.

[–] massacre@lemmy.world 41 points 20 hours ago (2 children)

This guy is in charge of the CENTER FOR DISEASE CONTROL. Not only responsible for the health of the nearly 400M US Citizens, but really globally in many ways. And this failson thinks you can sweat away ebola with some fucking supplements... that he happens to peddle.

I'd like to challenge him to prove it. Ebola is a messy way to go so I wouldn't want to be in the same room, but I guess that's what cameras are for.

[–] GenChadT@infosec.pub 14 points 19 hours ago (1 children)

I love the term "failson". It's such an apt description for these grifting fuckups.

[–] PolarKraken@lemmy.dbzer0.com 1 points 13 hours ago

Except for the way they keep succeeding 😐

[–] RonnyZittledong@lemmy.world 17 points 18 hours ago

We truly live in the golden age of the moron.

[–] brownsugga@lemmy.world 4 points 15 hours ago (1 children)

lol the earth is a battleground for forces we can neither observe nor comprehend, people are eating children and we are talking about a moron that denies germ theory

[–] UnderpantsWeevil@lemmy.world 2 points 4 hours ago (1 children)

people are eating children

I'm sorry, what's up?

[–] auntieclokwise@lemmy.world 1 points 1 hour ago

You haven't seen some of the theories coming out of the Epstein files? There's a bunch of really rich and powerful people in there making a weirdly big deal about jerky. These are the sort of people that have assistants, servants, and the like to take care of their every need and want. So, for them to be emailing each other about something as mundane as jerky is really weird. Oh and a chef closely associated with Epstein has a restaurant called the Cannibal. There's also some accusations, not sure how believable they are, from people who claim to have been around Epstein's operations and that they had witnessed or heard from a fellow employee that kids were getting killed and eaten.

[–] leoj@piefed.social 131 points 1 day ago (3 children)

yikes, dude is gonna be draining the four humors.

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[–] ArmchairAce1944@discuss.online 33 points 23 hours ago (1 children)

It is insane to think that he is endorsing a theory that was widely rejected even by Miasma guys in the 19th century.

The miasma advocates were wrong, but they still did many things that were beneficial. The first water treatment plants that provided the first safe drinking water were advocated for by miasma advocates, and the London sewer system, one that is still being used today was also built by them.

Terrain theory? They did jack shit. Just a bunch of crazy nuts who rejected both miasma and germ theory in the late 19th century.

[–] leftzero@lemmy.dbzer0.com 10 points 12 hours ago* (last edited 5 hours ago)

To be fair, miasma theory made sense and was completely logical, before microscopes.

They knew about actual lethal gases, and ones that had different effects on the body. They knew there were gases they couldn't yet detect, as they were still discovering new ones. They knew rotting stuff produced all kind of gases and stenchs.

Hell, the theory is still pretty much valid for radon, though for reasons they couldn't have possibly imagined.

And at the same time, the idea that animals could get small enough to be invisible, and to invade the human body, was absurd.

It came as quite a surprise when the microscope was invented and every single drop of water turned out to be a whole ecosystem teeming with life, and we turned out to be precariously balanced colonies of microscopic cells, also inhabited by a whole bacterial ecosystem teeming with both friends and foes.

And then came viruses, which are downright absurd to the point that we're still figuring out where they fit in the tree of life, and whether they're alive or not.

And prions, which are the stuff of horror science fiction yet completely logical when you think about how proteins work, and how easily they might sometimes not.

Miasma theory wasn't correct, sure, but it was definitely simpler, and made much more sense than the mess reality turned out to be.

[–] ZombieCyborgFromOuterSpace@piefed.ca 21 points 22 hours ago (1 children)

When he dies, I hope they do an autopsy of his body to see how many parasites and infections he had.

I think he'll explode into bugs like the oogie-boogie man.

[–] scytale@piefed.zip 73 points 1 day ago (1 children)

I bet he doesn't wash his hands after using the bathroom. Also, does he not visit the dentist? He should stop getting his teeth cleaned/checked if he thinks germs don't cause disease.

[–] floofloof@lemmy.ca 92 points 1 day ago* (last edited 1 day ago) (5 children)

Pete Hegseth bragged on TV that he had not washed his hands in 10 years, because "germs are not a real thing." These are stupid people.

https://www.bbc.com/news/world-us-canada-47201923

[–] BarneyPiccolo@lemmy.today 2 points 7 hours ago

These are people that believe that if you say something with enough arrogance, it makes it true.

[–] WhiskyTangoFoxtrot@lemmy.world 18 points 22 hours ago (3 children)

These are stupid people.

And yet they were able to fully take over the United States government. Really says something about the movements and institutions opposing them.

[–] eestileib@lemmy.blahaj.zone 1 points 3 hours ago

That they are complicit, yeah.

[–] leftzero@lemmy.dbzer0.com 2 points 12 hours ago

The rules mistakenly assumed that politicians would always be intelligent people with the interests of the nation in mind.

They didn't account for people voting for moronic crooks who openly intended to pillage and rape the nation for their own profit.

[–] matlag@sh.itjust.works 12 points 18 hours ago

Says more about the fragility of democracies. For other countries, the warning should be clear: do not fucking defund public education, do not restrict education.

Unfortunately, we keep electing people who defund education, because it's expensive, and then cry that people vote for morons who waste away tens or hundreds of billions of dollars...

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[–] Entertainmeonly@lemmy.blahaj.zone 68 points 1 day ago (4 children)

The Horseman known as Pestilence.

[–] kylie_kraft@lemmy.world 51 points 1 day ago (1 children)

A kind of Terry Pratchett, Good Omens version, absolutely. "We don't actually have to make new plagues, we just convince enough people that the natural plagues they've already got don't exist, or the causes aren't what they've been told, or that the treatments do greater harm than the disease. In fact, we don't even have to deceive that many. A handful of posts to alternative medicine, conspiracy, and mom's net forums, and human nature will do the rest."

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[–] nulluser@lemmy.world 36 points 1 day ago (3 children)

Those imbalances are claimed to be caused by poor nutrition and exposure to environmental toxins and stressors.

So, like swimming in streams polluted with sewage?

[–] bcgm3@lemmy.world 2 points 7 hours ago* (last edited 7 hours ago)

Or having brain worms?

Or getting whale carcass juice on you?

Or handling a dead bear?

Or cutting off a dead raccoon's dick?

This guy is trying so hard to be patient zero in the next plague, and he's not even trying to hide it.

[–] end_stage_ligma@lemmy.world 6 points 20 hours ago

like inhaling Trumps dookie stank

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[–] SGGeorwell@lemmy.world 39 points 1 day ago (12 children)

This is all an attempt by the rich to reduce numbers of poor people. They need more people dying, so they’re going to pull out all the safety features we’ve built into our society to prolong life.

[–] GeekyOnion@lemmy.world 32 points 1 day ago (1 children)

Less “reduce the number,” and more “make the poor more tractable.” The rich still need human carpet to walk on, they just need it to be uneducated, fecund, and desperate to get under their feet.

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[–] CorneliusTalmadge@lemmy.world 12 points 23 hours ago

You mean environmental toxins like germs?

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