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John Gregory

@johngregoryx.bsky.social
134 followers 56 following 79 posts

Health editor at NewsGuard, tracking and countering false health claims.

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John Gregory @johngregoryx.bsky.social · 06/10/2026
RFK Jr.'s latest false claim debunked by NewsGuard: No, the Trump administration did not reverse a 30-year decline in lifespan in the U.S. Apparently the HHS Secretary was conflating life expectancy with a drop in the mortality rate in 2025. www.newsguardrealitycheck.com/p/rfk-jrs-li...
newsguardrealitycheck.com
RFK Jr.’s Lifespan Confusion
Midterm Watch: Alabama Senator Falsely Accused of Saying ‘America Deserved 9/11’
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John Gregory @johngregoryx.bsky.social · 30/09/2026
Drinking radioactive water was a brief (and deadly) health fad in the 1920s and 1930s, but one health influencer with 500,000 Instagram followers is trying to bring it back. www.newsguardrealitycheck.com/p/radioactiv...
newsguardrealitycheck.com
Radioactive Health Hoax from the 1920s Returns
Social media accounts promote long-discredited radium water as a cure-all. PLUS: Introducing “Midterms Watch”
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John Gregory @johngregoryx.bsky.social · 19/08/2026
Anti-vaxxers are claiming that pet vaccines are causing a cancer epidemic among dogs and cats, including so-called “turbo cancers.” But there is no evidence to support their narrative. www.newsguardrealitycheck.com/p/anti-vaxxe...
newsguardrealitycheck.com
Anti-Vaxxers Are Coming for Your Pets
Anti-vaccine activists claim that cancer rates among dogs and cats are soaring, and that vaccines are to blame. The evidence suggests otherwise.
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John Gregory @johngregoryx.bsky.social · 14/08/2026
NewsGuard found 57,000 mentions on X of the phrase “82% miscarriage rate” between Aug. 10 and 13, with NewsNation and four GOP Senators helping the false claim to spread. www.newsguardrealitycheck.com/p/covid-vacc...
newsguardrealitycheck.com
COVID Vaccine-Induced Miscarriages?
Conservatives falsely claim that COVID-19 vaccines are linked to an increased risk of miscarriage: NewsGuard’s False Claim of the Week
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John Gregory @johngregoryx.bsky.social · 12/08/2026
Conservative commentators and right-leaning media are seizing on a January 2021 text message from Dr. Anthony Fauci to promote the long-debunked myth that COVID-19 vaccines cause miscarriages -- and in one case, demanding to "waterboard" Fauci. www.newsguardrealitycheck.com/p/innocent-f...
newsguardrealitycheck.com
Innocent Fauci Text Spun to Boost COVID-Miscarriage Myth
Conservative commentators and news sites are citing a January 2021 text message from Dr. Fauci to wrongly claim that COVID-19 vaccines can cause miscarriages.
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Reposted by John Gregory
Brian Stelter @brianstelter.bsky.social · 23/06/2026
Scoop: NewsGuard is launching an AI chatbot that accesses and aggregates info only from the sources it has rated as reliable. And it promises to pay the news publishers it cites. Here are all the details: www.cnn.com/2026/06/22/m...
cnn.com
This chatbot wants to solve AI’s news problem | CNN Business
AI chatbots are fast becoming a way people find news. But the systems are only as reliable as their sources, and are prone to misinformation and manipulation.
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John Gregory @johngregoryx.bsky.social · 17/06/2026
The rise in alpha-gal syndrome is real -- yet purveyors of false claims are exploiting that increase to push baseless conspiracies about its origin and a phony ear acupuncture cure. Read more in today's Reality Check from NewsGuard: www.newsguardrealitycheck.com/p/are-bill-g...
newsguardrealitycheck.com
Are Bill Gates’ Ticks Making Us Vegan?
Health hoaxers — citing the increase in a tick-borne red meat and dairy allergy — flood social media with false claims, including ones aimed at Gates.
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John Gregory @johngregoryx.bsky.social · 27/05/2026
Sites known for pushing false health claims are now asserting that GLP-1 drugs increase the risk of suicidal thoughts by 45 percent -- but it's all based on one study of unvetted “adverse event” reports. www.newsguardrealitycheck.com/p/the-phanto...
newsguardrealitycheck.com
The Phantom Link Between Weight-Loss Drugs and Suicide
Health hoax sites falsely claim that an August 2024 study proves that GLP-1 treatments cause a 45 percent increase in suicidal ideation.
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John Gregory @johngregoryx.bsky.social · 14/05/2026
The people who told you 5G caused COVID (it didn't) are now saying 6G is to blame for hantavirus (also no). Read more about the spread of this biologically impossible conspiracy theory from NewsGuard's Reality Check: www.newsguardrealitycheck.com/p/theres-no-...
newsguardrealitycheck.com
There’s No Possible Link Between Hantavirus and ‘6G’
PLUS: A Russian Disinformation Campaign Steals NewsGuard’s Name
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Reposted by John Gregory
News Literacy Project @newslit.org · 14/05/2026
“It’s basically conspiracy theory Mad Libs; they just take out the nouns & then they replace them with whatever the new outbreak is about.” - @johngregoryx.bsky.social of @newsguard.bsky.social #HealthMisinformation
nytimes.com
The Hantavirus Outbreak Is Resurrecting Covid-Era Misinformation Tactics
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John Gregory @johngregoryx.bsky.social · 07/05/2026
The 600th COVID myth documented by NewsGuard involves....Tom Hanks, for some reason. My reflections after 6+ years mired in the alternate reality created by COVID misinformers: www.newsguardrealitycheck.com/p/newsguard-...
newsguardrealitycheck.com
NewsGuard Tracks the 600th COVID Myth
“Peddlers of false claims are fighting to keep their alternate reality of COVID myths alive,” NewsGuard Health Editor John Gregory writes in a commentary.
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John Gregory @johngregoryx.bsky.social · 24/04/2026
Have you seen posts claiming a new study found 84% of cancer patients saw clinical benefits from taking antiparasitic drugs ivermectin and mebendazole? It's really just a survey masquerading as something scientific to sell an unproven and unapproved cancer treatment.🧵
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John Gregory @johngregoryx.bsky.social · 14/04/2026
Elon Musk supercharged the spread of a baseless claim that COVID-19 vaccines killed 60,000 people in Germany, sharing a post that amassed more than 50 million views on X alone. Read more from NewsGuard's Reality Check: www.newsguardrealitycheck.com/p/musk-gives...
newsguardrealitycheck.com
Musk Gives a 50 Million-View Boost to COVID Vaccine Hoax
X owner promotes the claim that COVID vaccines killed 60,000 people in Germany.
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John Gregory @johngregoryx.bsky.social · 01/04/2026
The RFK Jr.-founded Children's Health Defense doesn't just spread false claims about vaccines, but also about WiFi and cell phones. Its latest narrative claims that 26 million adults have health issues from wireless radiation. But its evidence had one obvious problem. 🧵
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John Gregory @johngregoryx.bsky.social · 24/03/2026
Myths spreading online about the UK meningitis are following the same playbook of false narratives seen during the COVID pandemic — even baselessly trying to blame COVID vaccines. Read more in NewsGuard’s Reality Check: www.newsguardrealitycheck.com/p/uk-meningi...
newsguardrealitycheck.com
U.K. Meningitis Outbreak Gets the Health Hoax Treatment
Four false claims about the U.K. meningitis outbreak follow the COVID-era hoax handbook
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John Gregory @johngregoryx.bsky.social · 13/02/2026
Anti-vaxxers' latest deflection from increasing measles cases: Saying that measles infections are actually beneficial and protect you from cancer (they don't.) www.newsguardrealitycheck.com/p/anti-vaxxe...
newsguardrealitycheck.com
Anti-Vaxxers Claim Deadly Measles Is Good for You
PLUS: Chinese State-Linked Operation Caught Using AI to Deceive Taiwanese Voters
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Reposted by John Gregory
NewsGuard @newsguard.bsky.social · 06/02/2026
Why We've Just Sued the Government Statement by NewsGuard Co-CEOs Steven Brill and Gordon Crovitz February 6, 2026 Read our full statement here: www.newsguardtech.com/press/why-we...
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John Gregory @johngregoryx.bsky.social · 22/12/2025
New from me in STAT: Many of the 1,000 false health claims debunked by NewsGuard have involved twisting legitimate research. Researchers need to push back — especially when HHS is misrepresenting your work. www.statnews.com/2025/12/22/r...
statnews.com
Researchers have a moral obligation to push back when their studies are twisted to promote false health claims
NewsGuard has collected 1,000 provably false statements in its False Claim Fingerprints database. Many involve misrepresented research.
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John Gregory @johngregoryx.bsky.social · 09/12/2025
Anti-vaxxers falsely claimed that hepatitis B vaccination is only justified for "PROSTITUTES AND DRUG ADDICTS" in celebrating a CDC panel's move to no longer recommend the vaccine for newborns. www.newsguardrealitycheck.com/p/cdcs-hepat...
newsguardrealitycheck.com
CDC’s Hepatitis B Vaccine Revision Sparks Bogus Claims
Prominent anti-vaxxers falsely claim that hepatitis B vaccination for newborns is unjustified, pointing to the CDC’s revised recommendations.
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John Gregory @johngregoryx.bsky.social · 04/11/2025
The father of the vaccine-autism myth is back with a new report pushing the same false claim. By counting studies of varying quality and methods as if they were equal, the report is like "a mountain of garbage," according to one expert. Read more here: www.newsguardrealitycheck.com/p/claim-dism...
newsguardrealitycheck.com
Claim Dismissed as ‘Mountain of Garbage’ Links Vaccines to Autism
NewsGuard spoke to experts who dismissed a widely-promoted new report claiming to link vaccines to autism as based on misinterpreted data
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John Gregory @johngregoryx.bsky.social · 29/10/2025
President Donald Trump’s pick for Surgeon General, Casey Means, has spread multiple provably false and potentially dangerous health claims — from the debunked myth that vaccines are linked to autism to the perilous claim that raw milk has health benefits.
newsguardrealitycheck.com
Five Health Hoaxes Pushed by Trump’s Surgeon General Nominee
Casey Means, Trump’s pick for Surgeon General, has advanced five provably false health claims since 2024, including that vaccines cause autism
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John Gregory @johngregoryx.bsky.social · 09/10/2025
Chemtrails still aren't real, even when there's a government shutdown. Read the latest from NewsGuard's Reality Check: newsguardrealitycheck.com/p/the-end-of...
newsguardrealitycheck.com
The End of Secret Government ‘Chemtrails’?
Conspiracy theorists are claiming that the government shutdown ended the practice of controlling the population through ‘chemtrails’ — a phenomenon that doesn’t actually exist
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John Gregory @johngregoryx.bsky.social · 30/09/2025
Conservative social media accounts are baselessly claiming that Tylenol overdoses among pregnant women are increasing because liberals are taking large amounts of the medication to spite President Donald Trump. Read more with NewsGuard's Reality Check: www.newsguardrealitycheck.com/p/pregnant-w...
newsguardrealitycheck.com
Pregnant Women Are Not Downing Tylenol to Spite Trump
No evidence supports a growing right-wing claim that liberal pregnant women are overdosing on Tylenol as a protest against Trump
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John Gregory @johngregoryx.bsky.social · 23/09/2025
In less than 24 hours, there were 38,000 posts on X mentioning both “Amish” and “no autism,” according to a social media analytics tool used by NewsGuard. www.newsguardrealitycheck.com/p/bogus-vacc...
newsguardrealitycheck.com
Bogus Vaccine-Autism Claims Go Viral After Trump Press Conference
False claims, including that the Amish don’t have autism because they are not vaccinated, surged following the Trump administration’s Sept. 22 press conference
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John Gregory @johngregoryx.bsky.social · 27/08/2025
The head of a new federal task force charged with reviewing the safety of COVID-19 vaccines has spread multiple false claims about the vaccines, including saying that the vaccines are responsible for an “unprecedented level of harm.” www.newsguardrealitycheck.com/p/cdcs-new-v...
newsguardrealitycheck.com
CDC’s New Vaccine Panel Head is a COVID Myth Superspreader
The leader of a new federal working group on COVID-19 vaccines has a long record of spreading false claims about vaccines.
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John Gregory @johngregoryx.bsky.social · 17/08/2025
"According to misinformation tracker NewsGuard, the campaign...takes advantage of high-profile events to pump out fabricated content from various publications, including ABC News, BBC and most recently POLITICO." www.politico.com/news/2025/08...
politico.com
Russia is quietly churning out fake content posing as US news
A pro-Russian propaganda group is taking advantage of high-profile news events to spread disinformation — and they’re spoofing reputable news outlets to do it.
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John Gregory @johngregoryx.bsky.social · 08/08/2025
RFK Jr. justified canceling mRNA vaccine funding by saying COVID vaccines: -"encourage new mutations" -"don't perform well" against respiratory viruses -"pose more risk benefits" All of those claims are false. More in NewsGuard's latest Reality Check: www.newsguardrealitycheck.com/p/rfk-jr-cit...
newsguardrealitycheck.com
RFK Jr. Cites Three False COVID Vaccine Claims to Justify Canceling mRNA Vaccine Funding
Health and Human Services Secretary Robert F. Kennedy Jr. advanced three false claims about COVID-19 vaccines to explain his cancellation of $500 million in government-funded mRNA vaccine projects.
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Reposted by John Gregory
NewsGuard @newsguard.bsky.social · 06/08/2025
NewGuard has become the target of a Kremlin-backed propaganda operation. We’ll take the impersonation and baseless accusations of bribes to be confirmation we’re doing something right. www.newsguardrealitycheck.com/p/russias-la...
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John Gregory @johngregoryx.bsky.social · 01/08/2025
New from NewsGuard: Natural health influencers are recycling the long-debunked myth that staring at the sun will miraculously improve your eyesight. Recent TikToks promoting the dangerous practice have garnered 100,000+ views. Read more here: www.newsguardrealitycheck.com/p/hoax-cure-...
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John Gregory @johngregoryx.bsky.social · 01/07/2025
"The research, conducted through NewsGuard's newly launched Reality Gap Index in partnership with YouGov, surveyed 1,000 Americans and found that only 7 percent of those surveyed could correctly identify all three false claims as untrue." newsweek.com/newsguard-st...
newsweek.com
Nearly half of Americans believe false claims, study shows
A NewsGuard study finds 49 percent of Americans believe false online claims, with only 7 percent correctly identifying all as untrue.
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John Gregory @johngregoryx.bsky.social · 27/06/2025
Since his first confirmation hearing, RFK Jr. has spread 12 provably false health claims in government hearings, media appearances, and on social media that have collectively amassed 25 million views on X alone, according to a NewsGuard analysis. www.newsguardrealitycheck.com/p/rfk-jr-get...
newsguardrealitycheck.com
RFK Jr. Gets a Bigger Megaphone
Since January, the Nation’s Top Health Official Has Advanced 12 False Health Claims Gaining 25 Million Views on X Alone
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John Gregory @johngregoryx.bsky.social · 25/06/2025
ICYMI: Researchers said RFK Jr.'s HHS twisted their work to justify shift on COVID vaccines during pregnancy. HHS' response was to suggest NewsGuard was dismissing "significance of the underlying data," even when the study authors said HHS was wrong. www.newsguardrealitycheck.com/p/researcher...
newsguardrealitycheck.com
Researchers Say HHS Memo to Congress Twisted Their Work to Back RFK Jr.'s Anti- Vaccine Agenda
By John Gregory
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John Gregory @johngregoryx.bsky.social · 19/06/2025
A HHS and RFK Jr. memo to Congress cited multiple studies to justify the agency’s new recommendation that pregnant women should not get a COVID vaccine. But the actual study authors who spoke to NewsGuard said HHS misrepresented their work. www.newsguardrealitycheck.com/p/researcher...
newsguardrealitycheck.com
Researchers Say HHS Memo to Congress Twisted Their Work to Back RFK Jr.'s Anti- Vaccine Agenda
By John Gregory
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John Gregory @johngregoryx.bsky.social · 12/06/2025
One of the U.S. government’s new advisors on vaccine recommendations, Dr. Robert Malone, is a frequent source of vaccine misinformation, including the false claims that COVID-19 vaccines can cause cancer and increase the risk of stillbirths. www.newsguardrealitycheck.com/p/the-myths-...
newsguardrealitycheck.com
The Myths Promoted by a New CDC Vaccine Advisor
Dr. Robert Malone has promoted 13 provably false claims from NewsGuard’s database
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John Gregory @johngregoryx.bsky.social · 29/05/2025
Anti-Vaxxers Resurface Myth that COVID-19 Vaccines Cause Miscarriages www.newsguardrealitycheck.com/p/anti-vaxxe...
newsguardrealitycheck.com
Anti-Vaxxers Resurface Myth that COVID-19 Vaccines Cause Miscarriages
By Anicka Slachta
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John Gregory @johngregoryx.bsky.social · 20/05/2025
Joe Biden is not suffering from COVID vaccine-induced "turbo cancer" -- because that's not a real thing. After Biden's cancer announcement on Sunday, it took only nine minutes for the first posts falsely blaming COVID vaccines to surface on X. www.newsguardrealitycheck.com/p/biden-not-...
newsguardrealitycheck.com
Biden Not Suffering from ‘Turbo Cancer’
PLUS: Bogus Election Fraud Claims in Romania; Blogger John Dougan Flagged at Borders for Sharing Name with Kremlin Propagandist John Mark Dougan
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John Gregory @johngregoryx.bsky.social · 13/05/2025
Contrary to claims pushed by RFK Jr.'s anti-vaccine group, none of the primary additives used to fluoridate water in the U.S. are included in a public, searchable database of substances that the EPA classifies as hazardous waste on its website. newsguardrealitycheck.com/p/no-the-epa...
newsguardrealitycheck.com
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John Gregory @johngregoryx.bsky.social · 01/05/2025
NewsGuard’s depository of false health-related claims advanced by RFK Jr. and the anti-vaccine nonprofit he founded has now hit 103. Check out the whole list and subscribe to NewsGuard’s Reality Check while you’re at it: www.newsguardrealitycheck.com/p/provably-f...
newsguardrealitycheck.com
Provably False Claims
NewsGuard has identified 103 different false claims promoted by Kennedy.
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John Gregory @johngregoryx.bsky.social · 25/04/2025
NewsGuard's health team often talks to experts when looking at complicated claims. This week, one expert didn't want his name used out of fear of being targeted by "a hit-list for grant cuts." Read more (and subscribe!) from NewsGuard's Reality Check: newsguardrealitycheck.com/i/162124066/...
newsguardrealitycheck.com
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Reposted by John Gregory
Dr. Lucky Tran @luckytran.com · 25/04/2025
A new analysis by Stanford epidemiologists predicts that measles could become endemic again in the US in the next 20 years. This would be a catastrophic failure and a result of anti-vax propaganda. Measles is a vaccine-preventable disease that was declared eliminated in the US in 2000.
Scientists Find Measles Likely to Become Endemic in the US Over Next 20 Years
A new study forecasts more than 850,000 measles cases over the next 25 years if US vaccination rates stay the same. Millions of infections are possible if rates drop.
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John Gregory @johngregoryx.bsky.social · 21/04/2025
Some X and Telegram users, citing comments from RFK Jr., are falsely claiming that studies debunking vaccine-autism claims have not compared vaccinated and unvaccinated children. In reality, multiple studies have done so, dating back to the 90s. www.newsguardrealitycheck.com/p/rfk-jr-spa...
newsguardrealitycheck.com
RFK Jr. Sparks False Claim Generating Millions of Views that Vaccine/Autism Studies Never Compared Vaccinated to Unvaccinated Children
By John Gregory
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John Gregory @johngregoryx.bsky.social · 21/04/2025
No, Dr. Fauci does not want to kill your cats to fight bird flu. All Fauci did was accurately note that H5N1 has infected cats -- which a frequent misinfo source stretched into a cat-killing conspiracy. More from NewsGuard: www.newsguardrealitycheck.com/p/anthony-fa...
newsguardrealitycheck.com
Anthony Fauci Does Not Want to Kill Your Pet Cats to Fight Bird Flu
By John Gregory
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John Gregory @johngregoryx.bsky.social · 02/04/2025
Anti-vaxxers are mixing up correlation and causation (again) with the Texas measles outbreak, falsely claiming that an uptick in MMR vaccinations after the outbreak started means the vaccine itself is to blame. www.newsguardrealitycheck.com/p/higher-mea...
newsguardrealitycheck.com
Higher Measles Vaccination Rate Is Not Contributing to Texas Measles Outbreak, Despite Claims on Popular Websites
By John Gregory
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John Gregory @johngregoryx.bsky.social · 29/03/2025
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John Gregory @johngregoryx.bsky.social · 28/03/2025
RFK Jr.'s anti-vax group is now blaming the measles death of a 6-year-old on "medical error" -- all based on records the public can't see and a re-diagnosis by Dr. Pierre Kory, best known for falsely promoting ivermectin as a COVID cure. The video racked up 1.2 million views in 5 days.
Dr. Pierre Kory in a March 19 video posted on X by anti-vaccine group Children’s Health Defense. (Screenshot via NewsGuard)
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John Gregory @johngregoryx.bsky.social · 27/03/2025
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John Gregory @johngregoryx.bsky.social · 25/03/2025
Frequent misinformation source Peter McCullough is pushing the same faulty measles math that NewsGuard covered in a recent Reality Check. VAERS reports don't prove causation — and you know why measles deaths are so rare in the U.S.? Vaccines. newsguardrealitycheck.com/i/159060459/an…
newsguardrealitycheck.com
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Reposted by John Gregory
Dan Diamond @ddiamond.bsky.social · 25/03/2025
“Friday was my last day leading communications at the Centers for Disease Control and Prevention. I left my job because I believe public health policy must always be guided by facts and not fantasy.” Kevin Griffis writing in WaPo about what it was like to work under RFK Jr
washingtonpost.com
Opinion | When the government becomes a health misinformation superspreader
Until I left last week, I led the CDC’s public health messaging. Now we need something to replace it.
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Reposted by John Gregory
E. Rosalie @erosalie.infoepi.com · 23/03/2025
NY Times covered the story. Kennedy claims he did not know and instructed them to take the website offline. I'm going to need more information. www.nytimes.com/2025/03/22/h...
nytimes.com
Kennedy Instructs Anti-Vaccine Group to Remove Fake C.D.C. Page (Gift Article)
Children’s Health Defense, founded by the health secretary, had published online a vaccine-safety page that looked like the agency’s but that suggested links to autism.
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John Gregory @johngregoryx.bsky.social · 21/03/2025
Have you seen this chart floating around X, along with some text saying it proves that the Texas measles outbreak coverage is "propaganda" or "panic?" That kind of portrayal relies on some monumentally misleading math. (1/2)
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