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Marco Zenone

@marcozenone.bsky.social
639 followers 1.4K following 31 posts

Assistant Professor @uOttawa researching medical & public health mis/disinformation, digital platforms, and commercial determinants of health. Zenonelab.ca

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Reposted by Marco Zenone
Nancy Karreman @karremannancy.bsky.social · 15/06/2026
I was so delighted to join @publichealthpod.bsky.social with @spidermaani.bsky.social to discuss our latest findings on the big business of #wellness based on our recent paper also with @marcozenone.bsky.social and Ben Hawkins. Give it a listen! 🎧
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Marco Zenone @marcozenone.bsky.social · 06/05/2026
The wellness industry’s influence goes beyond dubious health claims. Our new article led by @karremannancy.bsky.social with @spidermaani.bsky.social and Benjamin Hawkins examines the wellness industry from a commercial determinants of health perspective. onlinelibrary.wiley.com/doi/full/10....
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Reposted by Marco Zenone
Nancy Karreman @karremannancy.bsky.social · 05/05/2026
Open access ⤵️ onlinelibrary.wiley.com/doi/10.1111/... With thanks to co-authors @marcozenone.bsky.social @spidermaani.bsky.social and Ben Hawkins #PublicHealth #HealthPolicy #CommercialDeterminants #CDOH #Wellness
onlinelibrary.wiley.com
The Political Economy of Wellness: Commercial Determinants of a Burgeoning Industry
Policy Points Wellness has grown into a multi-trillion-dollar industry encompassing a multitude of products and practices that affect health and well-being. Applying a lens of commercial determin...
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Reposted by Marco Zenone
Nancy Karreman @karremannancy.bsky.social · 05/05/2026
New paper out! 📢 The #wellness industry is a multi-trillion $ force: selling products, shaping norms, and now influencing policy. But it's rarely analysed in the way we scrutinize tobacco or pharma. We apply a commercial determinants of health lens to wellness, including #MAHA. Short thread 🧵⤵️
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Marco Zenone @marcozenone.bsky.social · 23/04/2026
New study 📝 We audited 5 AI chatbots to assess how they respond to health questions in misinformation-prone contexts. 49.6% of responses were rated problematic (e.g., suggesting alternative cancer clinics), with limited guardrails and many poor/fabricated citations. bmjopen.bmj.com/content/16/4...
bmjopen.bmj.com
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Reposted by Marco Zenone
Sandro M. @srmarcon.bsky.social · 23/04/2026
Ask me no questions, I'll tell you no lies... Our team's health misinformation audit on popular and free AI chatbots found nearly 50% of responses were problematic. Link: bmjopen.bmj.com/content/16/4... Team: @nbtiller.bsky.social; @marcozenone.bsky.social; @caulfieldtim.bsky.social, et al.
bmjopen.bmj.com
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Marco Zenone @marcozenone.bsky.social · 17/10/2025
New in @stemcellreports.bsky.social: our study led by @srmarcon.bsky.social w/ @caulfieldtim.bsky.social looks at how “stem cell” supplements are sold on Amazon and whether the marketing aligns with U.S. & Canadian regulations. Conclusion: Amazon can do better to not enable bunk. cc @uottawa.ca
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Marco Zenone @marcozenone.bsky.social · 10/09/2025
September vibes on campus @uottawa.ca
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Marco Zenone @marcozenone.bsky.social · 10/09/2025
Anti-science sentiment is everywhere, but Canada is standing firm: #ScienceMatters! Great to see this statement and its signatories. scienceupfirst.com/sciencematte... @caulfieldtim.bsky.social
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Reposted by Marco Zenone
Timothy Caulfield @caulfieldtim.bsky.social · 10/09/2025
#ScienceMatters. Important to clearly counter demonstrably false bunk. Broad consensus that: - Vaccines do NOT cause autism - Ivermectin NOT effective against cancer, covid, etc - COVID vaccines do NOT cause "sudden death" or "turbo cancer" See statement: scienceupfirst.com/sciencematte...
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Reposted by Marco Zenone
Carrie Brown @brizzyc.bsky.social · 10/09/2025
News Creator Corps Launches Pilot Program To Train Content Creators To Fight Misinformation. Interesting. Applications are open. newscreatorcorps.org/news/2025/09...
newscreatorcorps.org
News Creator Corps Launches Pilot Program To Train Content Creators To Fight Misinformation - News Creator Corps
The inaugural class of selected creators will participate in an 8-week program featuring elements of content strategy and fact-checking training led by media professionals and experts.
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Marco Zenone @marcozenone.bsky.social · 10/09/2025
"Misinformation often offers simple, comforting answers, while real medicine is complex, uncertain and sometimes difficult to accept. Fake cancer claims can feel convincing because they seem to eliminate the uncertainty about whether treatment will work..." theconversation.com/how-cancer-m...
theconversation.com
How cancer misinformation exploits the way we think
Why false cancer claims feel true and what to do about it.
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Marco Zenone @marcozenone.bsky.social · 10/09/2025
"Meta lawyers intervened to shape internal research that could have flagged risks." www.bbc.com/news/article...
bbc.com
Meta covered up potential child harms, whistleblowers claim
Meta denies the allegations and described the "claims at the heart" of the Senate hearing as "nonsense".
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Marco Zenone @marcozenone.bsky.social · 10/09/2025
The WHO Foundation’s acceptance of anonymous donations risks losing public trust, as it raises transparency concerns about conflicts of interest and potential undue influence. www.theguardian.com/world/2025/s... @spidermaani.bsky.social
theguardian.com
Alarm as WHO accepts increasing amount of dark money from corporate donors
Experts say millions in corporate funding and concealment of donors’ identities raises key conflict-of-interest concerns
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Marco Zenone @marcozenone.bsky.social · 04/09/2025
Important study in light of recent news on MLMs as therapists: "While AIH could complement less-complex services [in mental health], it could not replace the therapeutic value of human interaction" @skyebarbic.bsky.social jopm.jmir.org/2025/1/e69449/
jopm.jmir.org
Perception of AI Use in Youth Mental Health Services: Qualitative Study
Background: Artificial intelligence (AI) technology has made significant advancements in healthcare. A key application of AI in mental health is the use of AI-powered chatbots; however, empirical evid...
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Marco Zenone @marcozenone.bsky.social · 04/09/2025
A new @newsguard.bsky.social report finds "false information nearly doubled from 18% to 35% in responses to prompts on news topics." www.axios.com/2025/09/04/p...
axios.com
Exclusive: Study finds chatbots are amplifying even more misinformation
The rate at which popular AI services amplify or fail to flag falsehoods has doubled in a year, per NewsGuard.
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Marco Zenone @marcozenone.bsky.social · 03/09/2025
ChatGPT not only failed to intervene but also "offered to help him write a suicide note to his parents." www.theguardian.com/technology/2...
theguardian.com
Teen killed himself after ‘months of encouragement from ChatGPT’, lawsuit claims
Open AI to change way it responds to users in mental distress as parents of Adam Raine allege bot not safe
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Marco Zenone @marcozenone.bsky.social · 03/09/2025
Over 1,000 current and former HHS call for Health Secretary Robert F. Kennedy Jr.'s resignation. abcnews.go.com/Health/1000-...
abcnews.go.com
More than 1,000 current, former HHS employees sign letter calling on RFK Jr. to resign
More than 1,000 current and former employees across HHS signed a letter on Wednesday morning calling for Health Secretary Robert F. Kennedy Jr.'s resignation.
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Marco Zenone @marcozenone.bsky.social · 03/09/2025
AI “safety measures” leave much to be desired. The authors found that chatbots refusing disinformation (ex: “I cannot assist with creating false information") can be tricked simply by wrapping requests in innocent frames like “simulation.” theconversation.com/how-we-trick...
theconversation.com
How we tricked AI chatbots into creating misinformation, despite ‘safety’ measures
Research reveals why simple prompts can bypass AI safeguards.
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Marco Zenone @marcozenone.bsky.social · 04/06/2025
New piece with @srmarcon.bsky.social in the @theconversation.com: Google searches for information about cancer lead to targeted ads from alternative clinics. theconversation.com/google-searc...
theconversation.com
Google searches for information about cancer lead to targeted ads from alternative clinics
Alternative cancer clinics spent over an US$15 million on Google ad spaces, generating millions of website visits from people searching for cancer information.
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Marco Zenone @marcozenone.bsky.social · 02/02/2025
🇨🇦❤️
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Reposted by Marco Zenone
UBC Centre for the Study of Democratic Institutions @ubcdemocracy.bsky.social · 15/01/2025
🌍 2024 saw half the world’s population voting. What did we learn about tech’s role in elections? Our final piece in the CIGI series explores key trends, from AI in campaigns to platform regulations, and what lies ahead for democracy. 📖 Read now: www.cigionline.org/articles/muc...
cigionline.org
Much of the World Voted in 2024: What Did We Learn?
In our introduction to CIGI’s The World Votes, 2024 series last February, we wrote: “One year from now, people could inhabit very different political worlds than the ones that currently exist.” We wer...
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Reposted by Marco Zenone
Nason Maani @spidermaani.bsky.social · 06/01/2025
New paper led by @marcozenone.bsky.social in @misinforeview.bsky.social on how Google allows alternative cancer clinics to target the sensitive information queries of cancer patients so their ads appear with keywords #CDoH misinforeview.hks.harvard.edu/article/goog...
misinforeview.hks.harvard.edu
Google allows advertisers to target the sensitive informational queries of cancer patients | HKS Misinformation Review
Alternative cancer treatments are associated with earlier time to death when used without evidence-based treatments. Our study suggests alternative cancer clinics providing scientifically unsupported ...
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Marco Zenone @marcozenone.bsky.social · 02/01/2025
When anyone searches for information on cancer treatment options - they shouldn't see ads for scientifically unsupported treatment or ads targeting people who have exhausted their treatment options. Our new study (unfortunately) finds this is occurring misinforeview.hks.harvard.edu/article/goog...
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Marco Zenone @marcozenone.bsky.social · 18/12/2024
I love this framing. Deliberate disinformation campaigns are a public health risk, by @helenp-h.bsky.social. Power imbalances, conflicts of interests, and digital platform inaction compound the growing problem confronting public health. theconversation.com/deliberate-d...
theconversation.com
Deliberate disinformation campaigns are a public health risk – but NZ has no effective strategy to deal with it
Studies have repeatedly shown false claims spread on social media and influence public perceptions, to the detriment of public health. But strategies to combat disinformation remain elusive.
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Marco Zenone @marcozenone.bsky.social · 18/12/2024
Spain to take action on fake news & disinformation. "These outlets and the platforms that host them must have a mechanism to facilitate citizens’ right to ask that false or inaccurate information that harms them be corrected publicly" www.theguardian.com/world/2024/d...
theguardian.com
Spain introduces bill to combat online fake news
Minister calls bill demanding digital platforms publicly correct false information ‘good news for democracy’
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Marco Zenone @marcozenone.bsky.social · 17/12/2024
A good overview of strategies to study TikTok. Important caveat for the API: TikTok asks to see results prior to publication, may audit API use without notice). Many indirect ways to scrape data, too, that don’t require coding skills or disclosing your research objectives (example, Apify).
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Marco Zenone @marcozenone.bsky.social · 17/12/2024
Narcissism associated with misinformation susceptibility? Yes. jspp.psychopen.eu/index.php/js...
jspp.psychopen.eu
Predicting Misinformation Beliefs Across Four Countries: The Role of Narcissism, Conspiracy Mentality, Social Trust, and Perceptions of Unsafe Neighborhoods| Journal of Social and Political Psychology
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Marco Zenone @marcozenone.bsky.social · 16/12/2024
Harmful cancer misinformation circulates across all digital platforms. This study demonstrates how compelling, emotional narratives surrounding alternative care misleads users on TikTok. cc @caulfieldtim.bsky.social @cherylepeters.bsky.social @srmarcon.bsky.social www.jmir.org/2024/1/e60283/
jmir.org
Alternative Health and Conventional Medicine Discourse About Cancer on TikTok: Computer Vision Analysis of TikTok Videos
Background: Health misinformation is abundant online and becoming an increasingly pressing concern for both oncology practitioners and patients with cancer. On social media platforms, including the po...
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