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The Vaccinologist's Desk (Dr Helen Petousis-Harris)

@helenp-h.bsky.social
742 followers 268 following 65 posts

Vaccine Science, Associate Professor @UoA, Co-Director Global Vaccine Data Network. In pursuit of a hike, good food and wine.

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Reposted by The Vaccinologist's Desk (Dr Helen Petousis-Harris)
Grant Jacobs BioinfoTools/NotJustDNA 🔬🧬🖥️✍️📚🇳🇿 @notjustdna.bsky.social · 07/02/2026
💉 Many readers will know I tried to correct this weird call by Peters’ during the election campaign. NZFirst are back spreading it… Here’s a polite take by @helenp-h.bsky.social ⬇️ What struck me was the WHO documents had a clause clarifying that sovereign decision making is unaffected. 1/n 🧵
theconversation.com
WHO membership doesn’t threaten NZ’s sovereignty – walking away from it would
The World Health Organization is a global body, but decisions affecting New Zealand are made in Wellington, not in Geneva.
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The Vaccinologist's Desk (Dr Helen Petousis-Harris) @helenp-h.bsky.social · 09/01/2026
Adopting another country’s immunisation schedule and calling it “shared decision-making” sounds reasonable. What could go wrong? I’ve written a piece unpacking the U.S. childhood vaccine schedule changes. Comes with audio and assets. Join my substack 😀 drhelenph.substack.com/p/shared-dec...
drhelenph.substack.com
Let’s Adopt Another Country’s Immunisation Schedule and call it shared decision making – What Could Possibly go wrong?
Listen to the audio file for the essentials.
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The Vaccinologist's Desk (Dr Helen Petousis-Harris) @helenp-h.bsky.social · 08/08/2025
My latest blog, breaking down RFK Jr.’s tin foil hat claims about aluminium in vaccines and autism. Epidemiologists see adjusted hazard ratios. RFK Jr. sees messages from the aluminium mothership🪱🚀 diplomaticimmunity.blog/no-rfk-jr-th...
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The Vaccinologist's Desk (Dr Helen Petousis-Harris) @helenp-h.bsky.social · 14/07/2025
1/ Aluminium in Vaccines — What 1.2 Million Kids Just Told Us A huge Danish study by @andershviid.bsky.social and team just looked at aluminium in childhood vaccines and 50+ chronic diseases. What did they find? Not harm. Not even a whisper of it. Here’s what you need to know ⬇️
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The Vaccinologist's Desk (Dr Helen Petousis-Harris) @helenp-h.bsky.social · 05/06/2025
1/2 LOGIC LEAKS: In the swirling chaos of vaccine misinformation, this argument keeps bubbling up: “But injected aluminium is different!” Yes — it is. So is drinking vs. drowning. Route matters. But that doesn’t make aluminium adjuvants dangerous.
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The Vaccinologist's Desk (Dr Helen Petousis-Harris) @helenp-h.bsky.social · 29/05/2025
There is no bottom to the depths that tyranny will dive. #supportscience #academicfreedom
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The Vaccinologist's Desk (Dr Helen Petousis-Harris) @helenp-h.bsky.social · 29/05/2025
😡i made a meme
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The Vaccinologist's Desk (Dr Helen Petousis-Harris) @helenp-h.bsky.social · 29/05/2025
Guillain-Barré syndrome (GBS) is a rare neurological disorder where the body’s immune system attacks the nerves, affecting about 1 to 4 people per 100,000 each year. It is rare! You need a lot of people to be able to do a study like this one!👇
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The Vaccinologist's Desk (Dr Helen Petousis-Harris) @helenp-h.bsky.social · 18/05/2025
Well said.
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Reposted by The Vaccinologist's Desk (Dr Helen Petousis-Harris)
Associate Professor Siouxsie Wiles @siouxsiew.bsky.social · 16/05/2025
The last few years have been pretty hard & I’ve largely become a bit of a hermit. But I’ve briefly emerged to talk about the thing that’s reignited my spark - menstrual cups! Thanks to NZ Women’s Weekly and Elizabeth Easther for coaxing me out of my shell. www.nzherald.co.nz/lifestyle/si...
nzherald.co.nz
Dr Siouxsie Wiles' Covid curse: ‘Abuse changed my world’
Pandemic fallout turned her into a hermit, but her future’s looking brighter.
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The Vaccinologist's Desk (Dr Helen Petousis-Harris) @helenp-h.bsky.social · 16/05/2025
The WHO Pandemic Agreement is not a global coup. It’s a blueprint for doing pandemics less badly next time. Yes, I support it. It strengthens cooperation, not control.
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Reposted by The Vaccinologist's Desk (Dr Helen Petousis-Harris)
Jason Gale @jasongale.bsky.social · 01/05/2025
New: Walmart heiress Christy Walton is backing a vaccine watchdog effort at @cidrap.bsky.social as measles surges and political pressure mounts on US health agencies. “This is a firebreak against political arson,” @helenp-h.bsky.social told me. Gift link to Bloomberg story ⬇ tinyurl.com/4nwbjefr
tinyurl.com
US Vaccine Watchdog Effort Begins as Measles Surge Draws Alarm
The Center for Infectious Disease Research and Policy at the University of Minnesota has quietly begun to steer a national initiative to safeguard the scientific foundations of US vaccine policy — a b...
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The Vaccinologist's Desk (Dr Helen Petousis-Harris) @helenp-h.bsky.social · 24/04/2025
The roads are certainly leading to Rome on the matter of shingles vaccine and reduced dementia risk. Cool aye ! 😎
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The Vaccinologist's Desk (Dr Helen Petousis-Harris) @helenp-h.bsky.social · 24/04/2025
Another victim of political whim and the delegitimization of science. 🤬Breaks my heart. 💔 www.stuff.co.nz/nz-news/3606...
stuff.co.nz
Groundbreaking project at Auckland Uni stopped in its tracks by US funding cut
Funding cut by Trump administration “isn’t just fiscally wasteful — it’s ethically indefensible”, says vaccinologist and professor Helen Petousis-Harris.
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The Vaccinologist's Desk (Dr Helen Petousis-Harris) @helenp-h.bsky.social · 14/04/2025
🧠 Can vaccines protect your brain? Latest blog. The evidence is growing - shingles, flu & COVID vaccines lower risk of dementia & stroke. Better vaxxed than sorry. Hope they expanded funding Viral villains vs vaccine heroes 👉 diplomaticimmunity.blog/dementia-and... #Vaccines #BrainHealth #Shingrix
diplomaticimmunity.blog
Can Vaccines Help Combat Dementia and Stroke Effectively? Yep!
Viral infections increase dementia and stroke risk. Discover how vaccines—especially Shingles vaccines—may protect brain health and delay cognitive decline.
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Reposted by The Vaccinologist's Desk (Dr Helen Petousis-Harris)
Associate Professor Siouxsie Wiles @siouxsiew.bsky.social · 21/03/2025
An excellent long read about how conspiracist attacked one of the worlds leading scientific journals. Both extraordinary and also horribly unsurprising. www.computerweekly.com/news/3665534...
computerweekly.com
Top science journal faced secret attacks from Covid conspiracy theory group | Computer Weekly
One of the world’s most prestigious general science journals, was the target of a two-year long sustained and virulent secret attack by a conspiratorial group of extreme Brexit lobbyists with high-lev...
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Reposted by The Vaccinologist's Desk (Dr Helen Petousis-Harris)
Richard M. Carpiano, PhD, MPH @rmcarpiano.medsky.social · 21/03/2025
Nice explainer on why letting H5N1 rip (yes, it was proposed by RFK Jr.) is a terrible, ignorant, and flat-out dangerous idea for many reasons... Kudos to @drjenndowd.bsky.social 🛟📉🧪 policy
jenndowd.substack.com
"Let it rip" for chickens? Don't put your eggs in that basket.
The Great Birdington Declaration
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The Vaccinologist's Desk (Dr Helen Petousis-Harris) @helenp-h.bsky.social · 15/03/2025
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Reposted by The Vaccinologist's Desk (Dr Helen Petousis-Harris)
David Roberts @volts.wtf · 14/03/2025
Holy shit. This is *the* gold-standard measurement of atmospheric CO2 -- the one in all the charts.
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The Vaccinologist's Desk (Dr Helen Petousis-Harris) @helenp-h.bsky.social · 14/03/2025
One of the safest and most effective vaccines ever developed, and also one struggling against tsunami of disinformation.
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Reposted by The Vaccinologist's Desk (Dr Helen Petousis-Harris)
Grant Jacobs BioinfoTools/NotJustDNA 🔬🧬🖥️✍️📚🇳🇿 @notjustdna.bsky.social · 11/03/2025
💉 As many warned (me too), RFK Jr’s words at his confirmation hearings were just to get him where he wanted to be. He was never not going to be anti-vax. Note these are terminations – cutting work currently underway short. (The article is pay-walled; more below.) 🧵⬇️ 1/n
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The Vaccinologist's Desk (Dr Helen Petousis-Harris) @helenp-h.bsky.social · 13/03/2025
1/3 My latest offering - a summary of the last 50-years of MMR safety data: The MMR vaccine has been tested. Repeatedly. For decades (in case there was actually any doubt!). Yet, zombie myths just won’t die. 🧟‍♂️ 1/3
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Reposted by The Vaccinologist's Desk (Dr Helen Petousis-Harris)
Grant Jacobs BioinfoTools/NotJustDNA 🔬🧬🖥️✍️📚🇳🇿 @notjustdna.bsky.social · 11/03/2025
And of course there’s more bsky.app/profile/drja...
“In a sweeping interview, Robert F. Kennedy Jr., the health and human services secretary, outlined a strategy for containing the measles outbreak in West Texas that strayed far from mainstream science, relying heavily on fringe theories about prevention and treatments.

He issued a muffled call for vaccinations in the affected community, but said the choice was a personal one. He suggested that measles vaccine injuries were more common than known, contrary to extensive research.

He asserted that natural immunity to measles, gained through infection, somehow also protected against cancer and heart disease, a claim not supported by research.”
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The Vaccinologist's Desk (Dr Helen Petousis-Harris) @helenp-h.bsky.social · 11/03/2025
Not surprising but awful none the less 😬😢
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The Vaccinologist's Desk (Dr Helen Petousis-Harris) @helenp-h.bsky.social · 11/03/2025
🚀 Cool New Study: Impact of Vaccination Site on Immune Response—In 🐁 Vaccines kickstart immune responses in nearby lymph nodes,. A new study in The Jnl of Immunology tested COVID-19 vaccine doses in mice, comparing same-arm (ipsilateral) vs. different-arm (contralateral) vaccination. 1/4
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The Vaccinologist's Desk (Dr Helen Petousis-Harris) @helenp-h.bsky.social · 09/03/2025
While we are enroute to 1933 there will be a visit to 1998 😬🙄
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The Vaccinologist's Desk (Dr Helen Petousis-Harris) @helenp-h.bsky.social · 08/03/2025
An unethical and absurd move ignoring the reality that these communities face higher risks and earlier onset of bowel cancer. It's not just immoral, it's reckless and deadly. What next? Move infant vaccination to mid-life to make it fair for older people? FFS! e-tangata.co.nz/comment-and-...
e-tangata.co.nz
Bowel screening change 'totally unethical' | E-Tangata
“We’re going to be left with people who go: ‘You know what, my uncle or my brother or my cousin died from bowel cancer. And it should have been picked up in a screening programme.’ Make no mistake, th...
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The Vaccinologist's Desk (Dr Helen Petousis-Harris) @helenp-h.bsky.social · 07/03/2025
Can’t believe we are having these conversations like it’s the ‘90s FFS! This should not be happening.
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The Vaccinologist's Desk (Dr Helen Petousis-Harris) @helenp-h.bsky.social · 07/03/2025
📢 New Study - A Natural Exp in Vaccine-Only Protection Against Omicron💉 NZs unique COVID-19 response created a natural experiment: Omicron hit a population with almost no prior SARS-CoV-2 infection—offering a test of vaccine-only immunity.🤩 @janinepaynter.bsky.social Why does this matter now?👇
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Reposted by The Vaccinologist's Desk (Dr Helen Petousis-Harris)
Janine Paynter @janinepaynter.bsky.social · 03/03/2025
This is brilliant! Why indeed do we have to put up with so much bungling and nonsense from this less than 10 percenter
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Reposted by The Vaccinologist's Desk (Dr Helen Petousis-Harris)
Alison Campbell @acampbelteacher.bsky.social · 28/02/2025
Appalling. Absolutely appalling. So many people will die.
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Reposted by The Vaccinologist's Desk (Dr Helen Petousis-Harris)
Chasbell 🏴󠁧󠁢󠁳󠁣󠁴󠁿🇮🇪🇮🇹🇨🇦 @chasbell.bsky.social · 21/02/2025
Think about it.
W
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Reposted by The Vaccinologist's Desk (Dr Helen Petousis-Harris)
Dr Sanjana Hattotuwa @sanjanah.bsky.social · 18/02/2025
Good capture by Dr @legallyfeminist.bsky.social Agree with everything noted by her. | Online violence and misogyny are still on the rise – NZ needs a tougher response theconversation.com/online-viole...
theconversation.com
Online violence and misogyny are still on the rise – NZ needs a tougher response
Relying on voluntary commitments to reduce online harm puts New Zealand out of step with other countries with legally enforceable rules to protect social media users’ safety.
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The Vaccinologist's Desk (Dr Helen Petousis-Harris) @helenp-h.bsky.social · 19/01/2025
Vaccine confidence is at a dangerous crossroads. The same COVID-19 vaccines that saved millions of lives are now caught in a sea of misinformation, distrust, and complacency. Belief in vaccines’ safety and effectiveness has dropped sharply worldwide, with young people particularly affected.😔👇
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The Vaccinologist's Desk (Dr Helen Petousis-Harris) @helenp-h.bsky.social · 14/12/2024
And so the dumb f*ery continues. Buckle up. 2025 gonna be blast for public health 😬🤯🫣 www.reuters.com/world/us/tru...
reuters.com
Trump to discuss ending childhood vaccination programs with RFK Jr.
U.S. President-elect Donald Trump in an interview published on Thursday said he will be talking to Robert F. Kennedy Jr., his nominee to run the Department of Health and Human Services, about ending childhood vaccination programs.
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Reposted by The Vaccinologist's Desk (Dr Helen Petousis-Harris)
Prof Danny Altmann @daltmann.bsky.social · 13/12/2024
I don’t normally stray here into politics, but this is global health and child mortality: somewhat terrified this will negatively impact not just public health in the USA, but could normalise this view further afield
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The Vaccinologist's Desk (Dr Helen Petousis-Harris) @helenp-h.bsky.social · 11/12/2024
My restrained rant about disinformation and gentle call to action. 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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The Vaccinologist's Desk (Dr Helen Petousis-Harris) @helenp-h.bsky.social · 26/11/2024
Sobering account of the measles epidemic and a timely reminder of the bad actors. Investigative Journalism at its best. 👍 www.theguardian.com/world/2024/n...
theguardian.com
‘We learned the hard way’: Samoa remembers a deadly measles outbreak and a visit from RFK Jr
A few months before the outbreak in 2019, Kennedy travelled to Samoa and met with anti-vaccine figures, contributing to what health experts claim was a ‘significant disinformation campaign’
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The Vaccinologist's Desk (Dr Helen Petousis-Harris) @helenp-h.bsky.social · 17/11/2024
Cool 😎
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Reposted by The Vaccinologist's Desk (Dr Helen Petousis-Harris)
Keith Edwards @keithedwards.bsky.social · 15/11/2024
Do you know how dark Twitter has to be for *STEPHEN KING* to say it’s too dark
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The Vaccinologist's Desk (Dr Helen Petousis-Harris) @helenp-h.bsky.social · 16/11/2024
We r so fkd if this plays out 😬😱😢 rfk has proved his anti-science agenda for years.
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Reposted by The Vaccinologist's Desk (Dr Helen Petousis-Harris)
Dr. Amy, PsyD 🎃 @dramypsyd.rmh-therapy.com · 14/11/2024
Please share - the New Zealand government wants to change/undo the Te Tiriti o Waitangi, which preserves the rights of Maori. our.actionstation.org.nz/petitions/ka...
our.actionstation.org.nz
Stop the Treaty Principles Bill - TOITŪ TE TIRITI!!
In 1835, 189 years ago, a gathering of great chiefs of Aotearoa signed He Whakaputanga with representatives of the British Crown. Five years from that date, Te Tiriti o Waitangi was signed between Māo...
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Reposted by The Vaccinologist's Desk (Dr Helen Petousis-Harris)
Anne Athema @anne-athema.bsky.social · 15/11/2024
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The Vaccinologist's Desk (Dr Helen Petousis-Harris) @helenp-h.bsky.social · 15/11/2024
Our latest blog on the zombie practice of abuse of VAERS data. 😔😮‍💨🤦‍♀️🤦‍♀️ I have been in this for nearly 30 years and if I had a dollar…. 😂
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The Vaccinologist's Desk (Dr Helen Petousis-Harris) @helenp-h.bsky.social · 14/11/2024
Had so much fun with this post. The trolls reckoned they would put my rebuttal to some of their ideas into AI as well as their own narrative and see what came back. Ok, It had to be done, so here you can see verbatim what CHATGPT4 thought of each.😀 substack.com/@drhelenph/n...
substack.com
Helen Petousis-Harris, PhD on Substack
The anti vaxxers thought AI should compare their post with mine, here is what it concluded.
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The Vaccinologist's Desk (Dr Helen Petousis-Harris) @helenp-h.bsky.social · 14/11/2024
After the trolls🧌went on one of their benders over on that other platform I posted this blog rather than answer them. Has examples of their propaganda playbook. "The Anti-Vax Playbook: How Conspiracies Twist Science and Demand Secrets. They didn't like it so much.😆 open.substack.com/pub/drhelenp...
open.substack.com
Inbox | Substack
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The Vaccinologist's Desk (Dr Helen Petousis-Harris) @helenp-h.bsky.social · 14/11/2024
Since I am new here I thought I would report last week's blogs on the @gvdn.bsky.social website, that finished off my miserable X life. Below are a series of 3 that address the myths of "DNA contamination of mRNA vaccines" 😱 and "Turbo Cancer"😱😱 #turbocancer #mRNA #misinformation
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Reposted by The Vaccinologist's Desk (Dr Helen Petousis-Harris)
Dr Sanjana Hattotuwa @sanjanah.bsky.social · 13/11/2024
I see a wry grin from those in New Zealand who’ve had to countenance this same autocratic template’s normalisation since October 2023 - with disastrous consequences for country’s social cohesion, & liberal democratic firmament, even raising spectre of intergenerational harms.
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Reposted by The Vaccinologist's Desk (Dr Helen Petousis-Harris)
Dr Sanjana Hattotuwa @sanjanah.bsky.social · 13/11/2024
What Musk did to trust & safety frameworks, staff, & guardrails at Twitter plus theatrics like ripping out servers made that platform a hellscape that amplifies neo-nazis, & white supremacists. Mapping this attitude to federal govt absolutely chilling prospect. www.washingtonpost.com/business/202...
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