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Kate Yandell

@kateyandell.bsky.social
111 followers 135 following 8 posts

science and health reporter at FactCheck.org

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Kate Yandell @kateyandell.bsky.social · 28/05/2026
Last month, RFK Jr. told senators: "I — we promote the measles vaccine. The measles vaccine prevents measles in 97% of the people who take it. I’ve always said that.” My @factcheck.org colleague @jjmcdona.bsky.social made a timeline of his comments on the topic: www.factcheck.org/2026/05/a-ti...
factcheck.org
A Timeline of RFK Jr.'s Mixed Messaging on the Measles Vaccine - FactCheck.org
In defending his record on measles, Health and Human Services Secretary Robert F. Kennedy Jr. twice said during a recent Senate hearing, “We promote" the measles vaccine. While it’s true that the Cent...
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Pam Kan-Rice @ucanrpam.bsky.social · 04/02/2026
“Who is going to track how many per grams per kilogram body weight of protein” they are eating? Wendi Gosliner @npi.ucanr.edu told @kateyandell.bsky.social www.factcheck.org/2026/02/amer...
factcheck.org
Americans Don't Need 'Dramatically' More Protein, Despite Officials’ Claims - FactCheck.org
In unveiling new dietary guidelines, federal health officials have claimed they are correcting past guidance that created a “generation of kids low in protein” and that Americans should get "dramatica...
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FactCheck.org @factcheck.org · 04/12/2025
The head of the Food and Drug Administration’s vaccine division claimed in a leaked email that “at least 10 children” died from COVID-19 vaccination, using that to justify major vaccine regulatory changes. Experts, however, say too little information was provided to verify the claim.
factcheck.org
Unpacking the FDA’s Black Friday Vaccine Memo - FactCheck.org
The head of the Food and Drug Administration's vaccine division claimed in a leaked email that “at least 10 children" died from COVID-19 vaccination, using that to justify major vaccine regulatory cha...
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FactCheck.org @factcheck.org · 03/12/2025
Previewing the CDC’s December Vaccine Advisory Meeting www.factcheck.org/2025/12/prev...
factcheck.org
Previewing the CDC’s December Vaccine Advisory Meeting - FactCheck.org
The vaccine advisory committee of the Centers for Disease Control and Prevention is scheduled to meet Dec. 4 and 5. On the agenda: the hepatitis B vaccine, the overall childhood vaccine schedule and s...
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FactCheck.org @factcheck.org · 03/10/2025
A substantial body of evidence supports the safety of the COVID-19 vaccines during pregnancy, contrary to the suggestions of some members of the Centers for Disease Control and Prevention’s vaccine advisory committee. HHS Robert F. Kennedy Jr. recently reconstituted the committee.
factcheck.org
Vaccine Advisory Committee Members Mislead About COVID-19 Vaccination During Pregnancy - FactCheck.org
A substantial body of evidence supports the safety of the COVID-19 vaccines during pregnancy, contrary to the suggestions of some members of the Centers for Disease Control and Prevention’s vaccine ad...
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FactCheck.org @factcheck.org · 22/09/2025
The Facts Behind Claims on Autism and Tylenol www.factcheck.org/2025/09/the-...
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Jessica McDonald @jjmcdona.bsky.social · 22/09/2025
Some good background reading before today's White House announcement, by @kateyandell.bsky.social. www.factcheck.org/2025/09/the-...
factcheck.org
The Facts Behind Claims on Autism, Tylenol and Folate - FactCheck.org
News reports have indicated Health and Human Services Secretary Robert F. Kennedy Jr. may point to Tylenol and folate deficiency in his promised announcement on the causes of autism. But neither Tylen...
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The New York Times @nytimes.com · 14/09/2025
“It will take decades to recover from this, if we ever do.” America’s cancer research system, which has helped save millions of lives and is in one of its most productive moments, is under threat by the Trump administration.
nyti.ms
Trump Is Shutting Down the War On Cancer
America’s cancer research system, which has helped save millions of lives, is under threat in one of its most productive moments.
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Kate Yandell @kateyandell.bsky.social · 11/09/2025
This one resonated with me. Pregnancy is a wildly vulnerable times, and it is shocking how readily content on these topics will find you if you fit a particular demographic and life stage. The quality of information is incredibly mixed.
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Helen Branswell 🇨🇦 @helenbranswell.bsky.social · 11/09/2025
If you read 1 thing today, please make it this: my so-talented colleague @ericboodman.bsky.social explains why babies in the US are vaccinated at birth against hep B — and what the human costs of changing that policy would be. www.statnews.com/2025/09/11/n...
statnews.com
Dropping hepatitis B shots for newborns would ignore history and endanger children, scientists warn
People who study, treat, or have hepatitis B say ending routine vaccination at birth - as some vaccine critics want - could lead to a resurgence of the virus.
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Jason L. Schwartz @jasonlschwartz.bsky.social · 11/09/2025
www.factcheck.org/2025/09/covi...
factcheck.org
COVID Vaccines Are Harder to Get, Despite Claims from HHS, RFK Jr. - FactCheck.org
Heated exchanges between some senators and Health and Human Services Secretary Robert F. Kennedy Jr. during a Sept. 4 hearing amplified confusion about the availability of COVID-19 vaccinations for th...
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Kate Yandell @kateyandell.bsky.social · 09/09/2025
“If a treatment is so horrible that a patient can’t handle it, then it is not an advancement in care,” Camidge says. “We don’t treat laboratory models or even patients. We treat people with lives that the cancer is in the way of.”
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Madhu Pai, MD, PhD @madhupai.bsky.social · 07/09/2025
Brilliant piece on how to engage in conversation with strangers about vaccines and public health @statnews.com @unbiasedscipod.bsky.social www.statnews.com/2025/09/06/c...
statnews.com
I inserted myself into a conversation at a bar about Covid and vaccines. Here’s what happened
What happened when a public health scientist overheard four men sharing misinformation about Covid — and decided to talk to them about it.
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Prof Jeffrey S Morris @jsm2334.bsky.social · 06/09/2025
I extensively contributed to this fact check on RFK’s critiques and calls to retract a recent Annals of Internal Medicine paper by Danish researchers showing dose of vaccine aluminum adjuvants does not increase risk of any of 50 chronic diseases including autism www.factcheck.org/2025/09/rfk-...
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Andrew Dessler @andrewdessler.com · 02/09/2025
Our 400+ page comment on the DOE climate working group report is now out. Our conclusion: The merchants of doubt are back, and they're coming for climate science.
sites.google.com
DOEresponseSite
On July 29, 2025, the Department of Energy (DOE) published a report from its Climate Working Group (CWG). This report features prominently in the EPA's reconsideration of its 2009 Endangerment Finding. In response, over 85 scientists have come together to write a comprehensive review, which is
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Sharon Lerner @fastlerner.bsky.social · 20/08/2025
My latest on the Health Sec who promised to figure out what causes autism and the autism research that's been stopped along the way www.propublica.org/article/rfk-...
propublica.org
RFK Jr. Vowed to Find the Environmental Causes of Autism. Then He Shut Down Research Trying to Do Just That.
While touting a $50 million initiative to identify the causes of autism, Robert F. Kennedy Jr. is helping lead an administration that is rolling back protections against pollution and toxic chemicals,...
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Annie Waldman @anniewaldman.bsky.social · 21/08/2025
NEW: In March, the Trump administration announced a massive purge of workers at the nation's health agencies. We asked them how many workers were laid off, pushed out or left. They refused to give us numbers. So we conducted our own analysis... 🧵 projects.propublica.org/federal-heal...
In March, the Trump administration announced a massive purge of workers at the nation's health agencies.

We asked them how many workers were laid off, pushed out or left, and the admin refused to give us numbers.

So we conducted our own analysis, a thread...
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FactCheck.org @factcheck.org · 21/08/2025
Q&A on the Trump EPA’s Effort to Curtail Regulation of Greenhouse Gas Emissions www.factcheck.org/2025/08/qa-o...
factcheck.org
Q&A on the Trump EPA's Effort to Curtail Regulation of Greenhouse Gas Emissions - FactCheck.org
The Environmental Protection Agency is holding public hearings this week on its effort to undo the legal foundation for its regulation of greenhouse gases, the heat-trapping gases that cause climate c...
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Kate Yandell @kateyandell.bsky.social · 15/08/2025
How RFK Jr. mischaracterizes vaccine court -- and what he can and can't do to overhaul it: www.factcheck.org/2025/08/rfk-...
factcheck.org
RFK Jr.’s Vaccine Court Spin - FactCheck.org
Health and Human Services Secretary Robert F. Kennedy Jr. misrepresented the country’s compensation program for those who are harmed by vaccines, alleging that it’s biased and corrupt and falsely clai...
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FactCheck.org @factcheck.org · 05/08/2025
No Evidence for Trump’s Claims of ‘Rigged’ or ‘Phony’ Job Numbers www.factcheck.org/2025/08/no-e...
factcheck.org
No Evidence for Trump's Claims of 'Rigged' or 'Phony' Job Numbers - FactCheck.org
Hours after the Bureau of Labor Statistics released employment data showing slow job growth for July and prior months, President Donald Trump fired the BLS commissioner, claiming the job numbers were ...
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Emily Pontecorvo @emilypont.bsky.social · 15/07/2025
New from me: A look at the what (could be) the legacy of the historic climate law, the IRA. Post-OBBB, here's a detailed accounting of which grant programs survived, and how much $$ Biden actually got out the door (or at least obligated) before Congress killed the rest. heatmap.news/politics/ira...
heatmap.news
Here’s How Much Money Biden Actually Spent From the IRA
When Congress rescinded unobligated funds from the historic climate law, it inadvertently answered a question climate advocates have been asking for months.
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Katie Mack @astrokatie.com · 19/06/2025
Chatbots — LLMs — do not know facts and are not designed to be able to accurately answer factual questions. They are designed to find and mimic patterns of words, probabilistically. When they’re “right” it’s because correct things are often written down, so those patterns are frequent. That’s all.
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Sarah McAnulty, Ph.D. @sarahmackattack.bsky.social · 03/07/2025
Btw if you live in Philadelphia and own a building (like your house for example) with a big wall like this and want a science mural, get at me. Especially if your street has high foot traffic. Philadelphians feel free to repost this one.
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Rachana Pradhan @rachanadpradhan.bsky.social · 30/06/2025
Among the thousands of federal workers that HHS fired this year: CDC researchers who advised clinicians on how to prescribe contraception safely for millions of women with underlying medical conditions. My latest on @cbsnews.com.web.brid.gy @kffhealthnews.org www.cbsnews.com/news/hhs-cdc...
cbsnews.com
HHS eliminates CDC staff who made sure birth control is safe for women at risk
The Trump administration eliminated the CDC team that developed national guidelines for prescribing contraception safely for millions of women with underlying medical conditions.
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Emily Atkin @emorwee.bsky.social · 30/06/2025
BREAKING: A source tells me that the Trump administration has shut down public access to every single National Climate Assessment, the Congressionally-mandated quadrennial report assessing how climate change is affecting the U.S. This is what you get when you try to access them online
An error message reads: Safari can't find the server "nca2023.globalchange.gov"
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Kevin Ault @kevinault.bsky.social · 14/06/2025
I am concerned there will be an uptick in disinformation about #RSV prior to the ACIP meeting later this month. Apparently, there will be a 'Vaccines for Children' (aka VFC) vote at that meeting.
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Viki Male @vikilovesfacs.bsky.social · 23/06/2025
The US Dept of Health and Human Services cited three safety studies to justify their recommendation that #CovidVaccines no longer be offered in #pregnancy. The problem? None of those studies showed what HHS said they showed. One didn’t even look at pregnancy 🤦🏻‍♀️ I spoke to @factcheck.org…
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Jeremy Berg @jeremymberg.bsky.social · 18/06/2025
Powerful story from Carolyn Johnson at the Washington Post... wapo.st/44ntbo4 [Should be a gift link; let me know if there are problems]
wapo.st
His custom cancer therapy is in an NIH freezer. He may not get it in time.
The purge of probationary federal workers included skilled lab personnel who would have finalized a customized cell immunotherapy for cancer patients.
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FactCheck.org @factcheck.org · 12/06/2025
Trump Now Citing Murder Stats He Used to Dismiss as ‘Fake News’ www.factcheck.org/2025/06/trum...
factcheck.org
Trump Now Citing Murder Stats He Used to Dismiss as 'Fake News' - FactCheck.org
President Donald Trump recently boasted that the nation's murder rate has "plummeted by 28%" since he took office. Data supplied by local police departments do show the nation's murder rate is droppin...
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Helen Branswell 🇨🇦 @helenbranswell.bsky.social · 11/06/2025
The Trump administration is reversing 100s of firings at #CDC, @chelseacirruzzo.bsky.social reports. www.statnews.com/2025/06/11/h...
statnews.com
HHS reverses hundreds of CDC firings
The Trump administration has reversed the firings of hundreds of staffers at the CDC.
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Carl Zimmer @carlzimmer.com · 04/06/2025
“I would like to cure brain cancer. I think that's not particularly controversial.” Be that as it may, the NIH terminated that scientist's grant. Here's a huge survey of the 2,500 grants that NIH has killed or delayed...so far. Gift link: nyti.ms/43Jz1yJ
A chart showing cancelled NIH grants
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BK. Titanji @boghuma.bsky.social · 03/06/2025
When viral epidemics are ignored they hardly magically disappear, they spread. Excellent reporting on the large outbreak of mpox in Sierra Leone. A country with a fragile health system and limited resources to effectively respond to this threat. www.science.org/content/arti...
science.org
Explosive mpox outbreak in Sierra Leone overwhelms health systems
Rapid transmission through sexual networks raises fears of wider spread in the region
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FactCheck.org @factcheck.org · 23/05/2025
A False Claim About Illegal Immigration and Medicaid www.factcheck.org/2025/05/a-fa...
factcheck.org
A False Claim About Illegal Immigration and Medicaid - FactCheck.org
A House-passed reconciliation bill would reduce federal funding to states that provide state-funded health insurance to people in the U.S. illegally, resulting in 1.4 million people losing coverage, a...
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FactCheck.org @factcheck.org · 11/04/2025
On four separate occasions, Robert F. Kennedy Jr., the Health and Human Services secretary, has suggested that the measles outbreak in Texas, which is now over 500 cases, is beginning to subside and grow more slowly. But a review of state data indicates there’s no decline yet in the pace of cases.
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Dr. Tom Frieden @drtomfrieden.bsky.social · 10/04/2025
For 75 years, every time any U.S. state has requested epidemiologic assistance (an “Epi-Aid”), CDC sent disease detectives. Now, Wisconsin has asked for help to address newly discovered lead poisoning in Milwaukee. But all CDC experts in lead poisoning were just fired.
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Helen Branswell 🇨🇦 @helenbranswell.bsky.social · 10/04/2025
Secretary Kennedy makes headlines for anything he says that sounds remotely pro-vaccine. But for every one of those mildly supportive statements, there are other remarks that continue to cast doubts about these important products. www.statnews.com/2025/04/10/r...
statnews.com
RFK Jr. suggests some vaccines are risky or ineffective, downplays measles threat
Health secretary Robert F. Kennedy Jr. this week is sowing doubt about the safety and efficacy of some vaccines — beyond the measles shot — and arguing the government shouldn’t mandate their use.
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Kate Yandell @kateyandell.bsky.social · 02/04/2025
Happy International Fact-Checking Day to those who celebrate
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FactCheck.org @factcheck.org · 20/01/2025
We explain what’s known about how the catastrophic L.A. wildfires started and the factors that scientists do — and don’t — think contributed. (1/2) www.factcheck.org/2025/01/what... #LAWildfires #California #factcheck
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Kate Yandell @kateyandell.bsky.social · 12/10/2023
Records describing the badly failed RSV vaccine trials in the 1960s refer to two toddlers who died. Now we know more about their stories. And medical racism is tragically, infuriatingly, and unsurprisingly involved. Read this. undark.org/2023/10/09/r...
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