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Marisha Goldhamer

@marishagoldhamer.bsky.social
759 followers 137 following 32 posts

Head of digital investigation for North America at AFP Swim mom 🏊🏻‍♂️

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Marisha Goldhamer @marishagoldhamer.bsky.social · 18h
Experts told Gwen Roley and me that North Americans do not need to buy kits including prescriptions for ivermectin and the antibiotic doxycycline, despite the possible plague death in Russia. Creators on social media claiming otherwise appear to have financial incentives for pushing the claim.
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AFP Fact Check @factcheck.afp.com · 14/09/2026
Posts touting mebendazole as cancer treatment go beyond the science. Read more: u.afp.com/Sjn8
Patent proves anti-parasitic drug is 'cure' for cancer? FALSE
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AFP Fact Check @factcheck.afp.com · 21/08/2026
Experts question US Census Bureau report on noncitizen voting. Read more: u.afp.com/SVo6
I voted stickers featuring American flags are spread on a table
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AFP Fact Check @factcheck.afp.com · 13/08/2026
Conservative US politicians and influencers have latched on to private text threads involving Anthony Fauci to revive false claims that the Covid-19 vaccines led to an 82% miscarriage rate. There is no evidence the shots increase the rate of miscarriages. Read more: u.afp.com/SHBp
Anthony Fauci raises his right hand as he is sworn in during a Senate Homeland Security and Governmental Affairs committee hearing on Capitol Hill in Washington, DC
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Marisha Goldhamer @marishagoldhamer.bsky.social · 11/08/2026
Excited to be part of this collaboration! We hope you'll subscribe for our pop-up newsletter u.afp.com/USMidtermsNe...
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Marisha Goldhamer @marishagoldhamer.bsky.social · 05/08/2026
Great to see Gwen Roley quoted about her misinformation reporting in Canada for @factcheck.afp.com
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Manon Jacob @manonjacob.bsky.social · 14/07/2026
#Disinformation 🥗Ivermectin as a treatment for cyclosporiasis? Experts say the anti-parasitic medication is ineffective against the intestinal illness. By @marishagoldhamer.bsky.social factcheck.afp.com/doc.afp.com....
factcheck.afp.com
Ivermectin is not a recommended treatment for cyclosporiasis
Health officials in the United States are reporting a record number of cases of cyclosporiasis -- an intestinal illness caused by a microscopic parasite in contaminated produce. But while social media...
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Marisha Goldhamer @marishagoldhamer.bsky.social · 05/06/2026
🏒 Hoping to enjoy the Stanley Cup finals without false claims from pages impersonating fan sites invading your Facebook feed? You're in luck. Meta removed 39 fake hockey fan pages I identified in this AFP investigation factcheck.afp.com/doc.afp.com....
factcheck.afp.com
Meta removes fake hockey fan pages amid playoffs
Meta has removed 39 Facebook pages that were pushing false claims about famous National Hockey League players following an AFP investigation. The pages were managed from Vietnam and capitalizing on in...
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Marisha Goldhamer @marishagoldhamer.bsky.social · 08/05/2026
New from @billmccarthy.bsky.social and me on the massive volume of Covid-era falsehoods that have resurfaced in the wake of the hantavirus outbreak
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AFP Fact Check @factcheck.afp.com · 05/05/2026
US infant mortality uptick falsely linked to Covid-19 vaccination. Read more: u.afp.com/Saz8
Close up on a mother holding her newborn child's foot
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Marisha Goldhamer @marishagoldhamer.bsky.social · 02/04/2026
Meta's decision to stop working with US fact-checkers hit my team, but we are still here holding disinformers to account. Wishing a very happy International Fact-Checking Day everyone, but especially my incredible teammates @billmccarthy.bsky.social @manonjacob.bsky.social & Gwen Roley
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AFP Fact Check @factcheck.afp.com · 01/04/2026
Happy International Fact-Checking Day! Find all of AFP's investigations at factcheck.afp.com #FactcheckingDay
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AFP Fact Check @factcheck.afp.com · 01/04/2026
Happy International Fact-Checking Day! Check out these highlights from our digital investigation annual report👇
International Fact-Checking Day 2026

Highlights from AFP's annual impact report
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Marisha Goldhamer @marishagoldhamer.bsky.social · 07/01/2026
"If an account with only 78 followers can have this kind of impact, imagine what an influencer with millions of followers is capable of.” Great get by @billmccarthy.bsky.social for @en.afp.com
straitstimes.com
‘Never expected this’: Creator of viral AI Maduro image comes forward
Ian Weber, who has fewer than 100 followers, was shocked by the image racking up millions of views online. Read more at straitstimes.com. Read more at straitstimes.com.
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Marisha Goldhamer @marishagoldhamer.bsky.social · 19/12/2025
Awful that these events are nearly always accompanied by such false accusations, but great work by @billmccarthy.bsky.social to capture the spread of these claims in real time
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Marisha Goldhamer @marishagoldhamer.bsky.social · 17/12/2025
Misinformation is spreading about shots for animals as surveys show a rise in vaccine hesitancy by American pet owners. My latest 👇
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Marisha Goldhamer @marishagoldhamer.bsky.social · 24/11/2025
My latest 👇
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AFP Fact Check @factcheck.afp.com · 20/11/2025
CDC edits website to include false claims about vaccines and autism factcheck.afp.com/doc.afp.com....
A general view of the Centers for Disease Control headquarters in Atlanta, Georgia
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Marisha Goldhamer @marishagoldhamer.bsky.social · 25/10/2025
I wrote this one for the many baseball lovers in my life. Beware of AI slop as you enjoy the World Series ⚾
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Marisha Goldhamer @marishagoldhamer.bsky.social · 17/10/2025
It's been a big 24 hours for my team. 👏👏👏 to @billmccarthy.bsky.social
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Marisha Goldhamer @marishagoldhamer.bsky.social · 17/10/2025
Love to see stories from @factcheck.afp.com used as the backbone of these resources. Read the fact check here: factcheck.afp.com/doc.afp.com....
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Bill McCarthy @billmccarthy.bsky.social · 16/10/2025
Our fact-check of the White House's deceptive Chicago video highlighted in CNN's "Reliable Sources" newsletter:
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Marisha Goldhamer @marishagoldhamer.bsky.social · 10/10/2025
51 GOP senators asked the FDA to restrict abortion pills. The letter cites a policy paper experts told me overstates the risks of the medication factcheck.afp.com/doc.afp.com....
Mifepristone (Mifeprex) and Misoprostol, the two drugs used in a medication abortion
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Manon Jacob @manonjacob.bsky.social · 01/10/2025
🌊🌀Five houses just fell -- yet again -- into the ocean in the Outer Banks. Here's my latest on what causes such a dramatic trend on North Carolina's coasts. Yes, it's natural erosion -- and climate change is making it worse. u.afp.com/SWCr
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Marisha Goldhamer @marishagoldhamer.bsky.social · 25/09/2025
It's been a busy week for debunking claims about what causes autism. Gentle reminder that it is not the MMR vaccine factcheck.afp.com/doc.afp.com....
A box of MMR vaccine vials
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Marisha Goldhamer @marishagoldhamer.bsky.social · 11/09/2025
Online misinformation does cause offline harm. Very proud of this story from my colleague Bill McCarthy and thankful to people willing to tell their stories even as they are receiving death threats.
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AFP Fact Check @factcheck.afp.com · 30/08/2025
Trisodium phosphate is a versatile chemical compound that is approved to be added to a variety of foods. Health influencers online regularly uphold it as a "toxic" ingredient because it is also found in industrial cleaning products, but quantity matters u.afp.com/TrisodiumPho...
Collage of screenshots of three videos posted to Facebook warning against children's breakfast cereal
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Marisha Goldhamer @marishagoldhamer.bsky.social · 25/06/2025
Thanks for including AFP's verification work in Canada in this @dfrlab.bsky.social report
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Marisha Goldhamer @marishagoldhamer.bsky.social · 06/06/2025
Great impact with this reporting from Bill. Glad to see platforms remove seemingly harmless accounts so they can't be used to spread more nefarious misinformation
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Marisha Goldhamer @marishagoldhamer.bsky.social · 29/05/2025
My team at AFP can confirm the MAHA report cites studies that do not exist. With contributions from @billmccarthy.bsky.social, @manonjacob.bsky.social and Gwen Roley www.france24.com/en/live-news...
france24.com
'Make America Healthy Again' report cites nonexistent studies: authors
At least four of the studies cited in a flagship White House report on children's health do not exist, authors listed in the document told AFP Thursday, casting doubt on the paper outlining Health Sec...
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Marisha Goldhamer @marishagoldhamer.bsky.social · 13/05/2025
Great to see AFP Fact Check's work referenced by @dfrlab.bsky.social in this case study from Canada dfrlab.org/2025/05/08/h...
dfrlab.org
How a misleading viral video fueled a Canadian election fraud hoax
Tracing how a viral hoax falsely linked election workers to ballot box fraud.
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Marisha Goldhamer @marishagoldhamer.bsky.social · 07/05/2025
A paper questioning the safety of mifepristone is spreading across social media, but women's health experts told me its findings are based on faulty methodology and do not supplant years of studies indicating medical abortion is safe factcheck.afp.com/doc.afp.com....
factcheck.afp.com
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Marisha Goldhamer @marishagoldhamer.bsky.social · 27/03/2025
🍁🗳️ Snap elections have been called in Canada and misinformation is already being shared. See something AFP should investigate? Send tips to: factcheckcanada@afp.com Find our election debunks here: factcheck.afp.com/list/Canadia...
Screenshot of the Canadian elections 2025 section of the AFP Fact Check website
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Marisha Goldhamer @marishagoldhamer.bsky.social · 05/03/2025
Wondering what Trump was referencing when he was talking about finding a social security file listing people older than 150 years old? @billmccarthy.bsky.social looked into that factcheck.afp.com/doc.afp.com....
factcheck.afp.com
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Marisha Goldhamer @marishagoldhamer.bsky.social · 14/02/2025
🇨🇦 This meme was used to spread false Canadian foreign aid figures when I fact checked it back in 2018. Readers told us it is circulating again as foreign assistance comes under scrutiny, so we wrote an updated story to let folks know it’s still wrong factcheck.afp.com/doc.afp.com....
factcheck.afp.com
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Marisha Goldhamer @marishagoldhamer.bsky.social · 10/01/2025
An open letter to Mark Zuckerberg from the world’s fact-checkers -- including AFP: "We believe the decision to end Meta’s third-party fact-checking program is a step backward for those who want to see an internet that prioritizes accurate and trustworthy information" www.poynter.org/ifcn/2025/an...
poynter.org
An open letter to Mark Zuckerberg from the world’s fact-checkers, nine years later - Poynter
From person-to-person coaching and intensive hands-on seminars to interactive online courses and media reporting, Poynter helps journalists sharpen skills and elevate storytelling throughout their car...
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Full Fact @fullfact.org · 07/01/2025
🗣️ Our full statement in response to Meta ending its third-party fact checking programme in the US: fullfact.org/blog/2025/ja...
Meta’s decision to end its partnership with fact checkers in the US is disappointing and a backwards step that risks a chilling effect around the world.

From safeguarding elections to protecting public health to dissipating potential unrest on the streets, fact checkers are first responders in the information environment. Locking fact checkers out of the conversation won’t help society to turn the tide on rapidly rising misinformation.
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Bill McCarthy @billmccarthy.bsky.social · 19/12/2024
NEW: A man who filmed a drone in New Jersey posted an edit of his video, adding CGI gunshots to apparently make a point on what could happen if officials did not act. Then the fake spread out of context across social media, seemingly reaching Joe Rogan this week. factcheck.afp.com/doc.afp.com....
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Marisha Goldhamer @marishagoldhamer.bsky.social · 10/12/2024
Posts connecting chronic ear infections to vaccination are not backed by evidence. Exposure to germs at day care/school or to secondhand smoke are risk factors. Bottle feeding in bed has been linked to ear infections, while breastfeeding has been shown to reduce the risk u.afp.com/earinfections
A screenshot of an Instagram post claiming that recurring ear infections in children are a side effect of vaccines. The post is crossed out with a red x to indicate it is false.
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Marisha Goldhamer @marishagoldhamer.bsky.social · 10/12/2024
This is a must read from @alexboyd.bsky.social Especially since the convoy in Ottawa caught global attention, misinformation about Canada has originated or been amplified on Tenet Media shows
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Bill McCarthy @billmccarthy.bsky.social · 05/12/2024
With a manhunt still underway after UnitedHealthcare's CEO was shot down yesterday, some of the most viral posts on X are baselessly suggesting Democrats such as Nancy Pelosi or Tim Walz were behind it. A reminder to beware conspiracy theories that thrive in information vacuums after crisis events.
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Marisha Goldhamer @marishagoldhamer.bsky.social · 26/11/2024
Experts say RSV vaccines were rigorously tested and there are proven benefits for high risk populations factcheck.afp.com/doc.afp.com....
factcheck.afp.com
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Marisha Goldhamer @marishagoldhamer.bsky.social · 26/11/2024
Nice to virtually meet you Bluesky 👋 I am journalist working to combat misinformation in Canada and the US. Follow for my work and highlights from my team at AFP. See a post you want fact-checked? Please reach out!
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