Maryanne Demasi
Contributor at Freelance
Investigative Journalist at Maryanne Demasi, reports
Investigative journalist, PhD, Researcher, TV presenter/producer, ex-@ABCTV. @Brownstoneinst Fellow. Subscribe to my Substack 👇🏼
Articles
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1 week ago |
blog.maryannedemasi.com | Maryanne Demasi
The debate over face masks hasn’t faded—it has calcified. Five years after the onset of Covid-19, the question of whether masks are an effective public health tool continues to divide experts and polarise the public. At the heart of this divide is a clash between competing standards of evidence. Earlier this year, the BMJ published a sweeping “state of the art” review led by Professor C. Raina MacIntyre.
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1 week ago |
brownstone.org | Maryanne Demasi
One of the most powerful figures at the US Food and Drug Administration (FDA) has admitted she refused the Covid-19 mRNA vaccine while pregnant—even as her agency promoted it as “safe and effective” for all pregnant women. Dr Sara Brenner’s explosive disclosure, made on 15 May 2025 at the MAHA Institute Round Table in Washington, DC, is as revealing as it is troubling. A preventive medicine physician, Brenner has worked at the FDA since 2019.
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1 week ago |
blog.maryannedemasi.com | Maryanne Demasi
This Substack was launched with a simple goal: to produce fearless, independent journalism on medicine, science, and public health—free from interference, censorship, or corporate funding. For almost two decades, I’ve published investigations that have broken news, challenged powerful institutions, and helped shape public debate. Some of you have already taken out a paid subscription—thank you.
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2 weeks ago |
blog.maryannedemasi.com | Maryanne Demasi
In the hours after Robert F. Kennedy Jr. announced a sweeping overhaul of the CDC’s vaccine advisory committee, I sat down with one of the incoming appointees—MIT professor Retsef Levi. Levi has extensive experience working with clinicians and analysing healthcare data, including in drug safety, signal detection, and biologics manufacturing. He specialises in data-driven tools for risk assessment and risk–benefit decision-making.
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2 weeks ago |
blog.maryannedemasi.com | Maryanne Demasi
Today, US Health Secretary Robert F. Kennedy Jr. announced the names of eight new members who will join the CDC’s Advisory Committee on Immunization Practices (ACIP)—a slate he describes as “highly credentialed physicians and scientists” committed to evidence-based decision-making, transparency, and common sense.
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RT @RetsefL: Most observational studies on COVID vaccination during pregnancy have methodological flaws & limitations, often glaring ones,…
RT @MaryanneDemasi: ⏰Covid-19 vaccine reform is moving slower than many had hoped Moderna's latest mRNA vaccine approval stunned reform adv…
⏰Covid-19 vaccine reform is moving slower than many had hoped Moderna's latest mRNA vaccine approval stunned reform advocates—but real change demands persistence, especially when science runs up against powerful industry interests. https://t.co/Hx5MbsLrBu @Jikkyleaks https://t.co/zmFwKwQKnw