Marc Veldhoen
@marcveld.bsky.social
Professor of Immunology 🇳🇱 🇬🇧
Lisbon, 🇵🇹
#Immunology
Time for Science, not silence
https://scholar.google.co.uk/citations?user=7vG1jLIAAAAJ&hl=en
https://orcid.org/0000-0002-1478-9562
threads.net/@marc_veld
mastodon.online/@marc_veld
Lisbon, 🇵🇹
#Immunology
Time for Science, not silence
https://scholar.google.co.uk/citations?user=7vG1jLIAAAAJ&hl=en
https://orcid.org/0000-0002-1478-9562
threads.net/@marc_veld
mastodon.online/@marc_veld
Pinned
What will population immunity to SARS-CoV-2 look like in a post-vaccine world?
An updated outlook (2025)
marcveldhoen.substack.com
Five years of COVID taught us one thing: immunology didn’t fail, our public discourse did. My new Substack cuts through the noise with evidence, not ideology. If you want facts over fear, and science over spin, join here:
marcveldhoen.substac...
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marcveldhoen.substac...
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Reposted by Marc Veldhoen
Five years of COVID taught us one thing: immunology didn’t fail, our public discourse did. My new Substack cuts through the noise with evidence, not ideology. If you want facts over fear, and science over spin, join here:
marcveldhoen.substac...
1/2
marcveldhoen.substac...
1/2
What will population immunity to SARS-CoV-2 look like in a post-vaccine world?
An updated outlook (2025)
marcveldhoen.substack.com
November 29, 2025 at 12:01 PM
Five years of COVID taught us one thing: immunology didn’t fail, our public discourse did. My new Substack cuts through the noise with evidence, not ideology. If you want facts over fear, and science over spin, join here:
marcveldhoen.substac...
1/2
marcveldhoen.substac...
1/2
It is shameful bullying. These are very legitimate questions. The next reporter shoukd ask the same question again. If cut off: all walk out!
youtu.be/xTHOLWEKuNQ...
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youtu.be/xTHOLWEKuNQ...
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Trump Blasts ABC Reporter In Front Of Saudi Prince, Slams 'Disrespectful' Question To MBS
US President Donald Trump went on to lash out at an ABC reporter and her network over a question about releasing the Epstein files. The president criticized the reporter's attitude and the way she asks questions and then said he thinks the license should be taken away from ABC. He then referred to F
youtu.be
December 1, 2025 at 12:05 AM
It is shameful bullying. These are very legitimate questions. The next reporter shoukd ask the same question again. If cut off: all walk out!
youtu.be/xTHOLWEKuNQ...
1/2
youtu.be/xTHOLWEKuNQ...
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Right-wing populists shout “elite!” and mean: anyone with a degree, a bookshelf, or a functioning brain.
The left says “elite!” and means: billionaires, lobbyists, and people who donate large sums of money to political parties.
Same word, different universes.
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The left says “elite!” and means: billionaires, lobbyists, and people who donate large sums of money to political parties.
Same word, different universes.
1/2
November 30, 2025 at 10:53 PM
Right-wing populists shout “elite!” and mean: anyone with a degree, a bookshelf, or a functioning brain.
The left says “elite!” and means: billionaires, lobbyists, and people who donate large sums of money to political parties.
Same word, different universes.
1/2
The left says “elite!” and means: billionaires, lobbyists, and people who donate large sums of money to political parties.
Same word, different universes.
1/2
Reposted by Marc Veldhoen
Tattoo ink induces inflammation in the draining lymph node and alters the immune response to vaccination
Tattoo ink commonly reaches and persists in this organ in most tattooed subjects, often lifelong.
www.pnas.org/doi/10....
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Tattoo ink commonly reaches and persists in this organ in most tattooed subjects, often lifelong.
www.pnas.org/doi/10....
1/5
Tattoo ink induces inflammation in the draining lymph node and alters the immune response to vaccination | PNAS
Despite safety concerns regarding the toxicity of tattoo ink, no studies have reported
the consequences of tattooing on the immune response. In thi...
www.pnas.org
November 28, 2025 at 12:47 PM
Tattoo ink induces inflammation in the draining lymph node and alters the immune response to vaccination
Tattoo ink commonly reaches and persists in this organ in most tattooed subjects, often lifelong.
www.pnas.org/doi/10....
1/5
Tattoo ink commonly reaches and persists in this organ in most tattooed subjects, often lifelong.
www.pnas.org/doi/10....
1/5
Reposted by Marc Veldhoen
Please don´t do this.
These accounts have little or no understanding of science in general, and no knowledge of immunology.
I received a lot of messaged regarding the meaning of this study.....
1/4
These accounts have little or no understanding of science in general, and no knowledge of immunology.
I received a lot of messaged regarding the meaning of this study.....
1/4
November 29, 2025 at 7:33 PM
Please don´t do this.
These accounts have little or no understanding of science in general, and no knowledge of immunology.
I received a lot of messaged regarding the meaning of this study.....
1/4
These accounts have little or no understanding of science in general, and no knowledge of immunology.
I received a lot of messaged regarding the meaning of this study.....
1/4
The fall of a prolific science journal exposes the billion-dollar profits of scientific publishing
One of the 15 publications that put out the most studies globally has been expelled from the indexing system for irregularities.
english.elpais.com/s...
1/3
One of the 15 publications that put out the most studies globally has been expelled from the indexing system for irregularities.
english.elpais.com/s...
1/3
The fall of a prolific science journal exposes the billion-dollar profits of scientific publishing
One of the 15 publications that put out the most studies globally has been expelled from the indexing system for irregularities. Its publisher, Elsevier, has a 38% profit margin that reached $1.5 billion in 2024
english.elpais.com
November 30, 2025 at 7:10 PM
The fall of a prolific science journal exposes the billion-dollar profits of scientific publishing
One of the 15 publications that put out the most studies globally has been expelled from the indexing system for irregularities.
english.elpais.com/s...
1/3
One of the 15 publications that put out the most studies globally has been expelled from the indexing system for irregularities.
english.elpais.com/s...
1/3
Reposted by Marc Veldhoen
F.D.A. Attributes 10 Children’s Deaths to Covid Vaccines
The agency’s top vaccine regulator said that a review had found that the children were likely to have died “because of” the shots. But public health experts want to examine the data.
www.nytimes.com/2025...
1/2
The agency’s top vaccine regulator said that a review had found that the children were likely to have died “because of” the shots. But public health experts want to examine the data.
www.nytimes.com/2025...
1/2
F.D.A. Attributes 10 Children’s Deaths to Covid Vaccines
The agency’s top vaccine regulator said that a review had found that the children were likely to have died “because of” the shots. But public health experts want to examine the data.
www.nytimes.com
November 29, 2025 at 2:57 PM
F.D.A. Attributes 10 Children’s Deaths to Covid Vaccines
The agency’s top vaccine regulator said that a review had found that the children were likely to have died “because of” the shots. But public health experts want to examine the data.
www.nytimes.com/2025...
1/2
The agency’s top vaccine regulator said that a review had found that the children were likely to have died “because of” the shots. But public health experts want to examine the data.
www.nytimes.com/2025...
1/2
"Fraud is honesty"
President Trump has set free a private equity executive who had served less than two weeks of a seven-year sentence for his role in what prosecutors described as a $1.6 billion scheme that defrauded thousands of victims.
Trump Frees Fraudster Just Days Into Seven-Year Prison Sentence
David Gentile had been found guilty for his role in what prosecutors described as a $1.6 billion scheme that defrauded thousands of investors.
nyti.ms
November 30, 2025 at 4:29 PM
"Fraud is honesty"
667 dagen in het dinker: hoe postcovidpatienten uit de maatschappij verdwenen.
Nederland telt enkele honderden enstige longcovid patiënten, de meesten geïnfecteerd gedurende de pandemie jaren.
www.volkskrant.nl/ki...
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Nederland telt enkele honderden enstige longcovid patiënten, de meesten geïnfecteerd gedurende de pandemie jaren.
www.volkskrant.nl/ki...
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667 dagen in het donker: hoe postcovidpatiënten uit de maatschappij verdwenen
Ze leven achter gesloten gordijnen, aan bed gekluisterd. Voor de allerziekste postcovidpatiënten in Nederland is er nog steeds geen passende hulp of zicht op genezing. Vier van hen gunden ons een blik in hun leven, hoe hoog de prijs ook was die ze daarvoor moesten betalen.
www.volkskrant.nl
November 30, 2025 at 11:11 AM
667 dagen in het dinker: hoe postcovidpatienten uit de maatschappij verdwenen.
Nederland telt enkele honderden enstige longcovid patiënten, de meesten geïnfecteerd gedurende de pandemie jaren.
www.volkskrant.nl/ki...
1/5
Nederland telt enkele honderden enstige longcovid patiënten, de meesten geïnfecteerd gedurende de pandemie jaren.
www.volkskrant.nl/ki...
1/5
US public health is undergoing a counter revolution that is likely to result in the return of infectious diseases and preventable suffering.
Let's hope the rest of the world will stay away, but watches and ridicules these anti-scientist, and holds up evidence, facts and methods
Let's hope the rest of the world will stay away, but watches and ridicules these anti-scientist, and holds up evidence, facts and methods
November 30, 2025 at 9:28 AM
US public health is undergoing a counter revolution that is likely to result in the return of infectious diseases and preventable suffering.
Let's hope the rest of the world will stay away, but watches and ridicules these anti-scientist, and holds up evidence, facts and methods
Let's hope the rest of the world will stay away, but watches and ridicules these anti-scientist, and holds up evidence, facts and methods
CDC Updates Vaccine Safety Page to Promote Vaccine Misinformation, Cites Kennedy’s Anti-Vax Allies
It is the latest move by Robert Kennedy Jr.’s Department of Health and Human Services to undermine vaccines.
@WalkerBragman
It is the latest move by Robert Kennedy Jr.’s Department of Health and Human Services to undermine vaccines.
@WalkerBragman
CDC Updates Vaccine Safety Page to Promote Vaccine Misinformation, Cites Kennedy’s Anti-Vax Allies
It is the latest move by Robert Kennedy Jr.’s Department of Health and Human Services to undermine vaccines.
www.importantcontext.news
November 29, 2025 at 10:47 PM
CDC Updates Vaccine Safety Page to Promote Vaccine Misinformation, Cites Kennedy’s Anti-Vax Allies
It is the latest move by Robert Kennedy Jr.’s Department of Health and Human Services to undermine vaccines.
@WalkerBragman
It is the latest move by Robert Kennedy Jr.’s Department of Health and Human Services to undermine vaccines.
@WalkerBragman
Reposted by Marc Veldhoen
Ethiopian deaths from marburg rise to eight
With an underfunded WHO and USAID, this is concerning for the country and region.
apanews.net/ethiopia...
With an underfunded WHO and USAID, this is concerning for the country and region.
apanews.net/ethiopia...
November 29, 2025 at 4:43 PM
Ethiopian deaths from marburg rise to eight
With an underfunded WHO and USAID, this is concerning for the country and region.
apanews.net/ethiopia...
With an underfunded WHO and USAID, this is concerning for the country and region.
apanews.net/ethiopia...
Broad-spectrum synthetic carbohydrate receptors (SCRs) inhibit viral entry across multiple virus families
Targeting sugar molecules shared on the surface of several virus families new compounds were found that can neutralise viruses.
www.science.org/doi/...
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Targeting sugar molecules shared on the surface of several virus families new compounds were found that can neutralise viruses.
www.science.org/doi/...
1/2
Broad-spectrum synthetic carbohydrate receptors (SCRs) inhibit viral entry across multiple virus families
Synthetic carbohydrate receptors prevent viral infections by binding to conserved enveloped virus glycans on viral surfaces.
www.science.org
November 29, 2025 at 8:53 PM
Broad-spectrum synthetic carbohydrate receptors (SCRs) inhibit viral entry across multiple virus families
Targeting sugar molecules shared on the surface of several virus families new compounds were found that can neutralise viruses.
www.science.org/doi/...
1/2
Targeting sugar molecules shared on the surface of several virus families new compounds were found that can neutralise viruses.
www.science.org/doi/...
1/2
Please don´t do this.
These accounts have little or no understanding of science in general, and no knowledge of immunology.
I received a lot of messaged regarding the meaning of this study.....
1/4
These accounts have little or no understanding of science in general, and no knowledge of immunology.
I received a lot of messaged regarding the meaning of this study.....
1/4
November 29, 2025 at 7:33 PM
Please don´t do this.
These accounts have little or no understanding of science in general, and no knowledge of immunology.
I received a lot of messaged regarding the meaning of this study.....
1/4
These accounts have little or no understanding of science in general, and no knowledge of immunology.
I received a lot of messaged regarding the meaning of this study.....
1/4
Altered brain tissue microstructure and neurochemical profiles in long COVID and recovered COVID-19 individuals: A multimodal MRI study
COVID-Doomers go nuts over this again. It isn´t worth it.
www.sciencedirect.co...
1/5
COVID-Doomers go nuts over this again. It isn´t worth it.
www.sciencedirect.co...
1/5
November 29, 2025 at 7:11 PM
Altered brain tissue microstructure and neurochemical profiles in long COVID and recovered COVID-19 individuals: A multimodal MRI study
COVID-Doomers go nuts over this again. It isn´t worth it.
www.sciencedirect.co...
1/5
COVID-Doomers go nuts over this again. It isn´t worth it.
www.sciencedirect.co...
1/5
Reposted by Marc Veldhoen
In the autumn of 2020, we completed our initial outlook on the developing COVID-19 pandemic caused by SARS-CoV-2. At that time, our laboratories were deeply embedded in a concerted national and international effort to understand the virus.
www.nature.com/artic...
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www.nature.com/artic...
1/4
Endemic SARS-CoV-2 will maintain post-pandemic immunity | Nature Reviews Immunology
COVID-19 vaccinations have started. They will stop the pandemic. Citing recent data that are in line with immunological knowledge and predictions, combined with insights of common cold coronaviruses, we here set out the case that the maintenance of population immunity will not depend on continued vaccinations but on the endemic presence of SARS-CoV-2. Here, Veldhoen and Simas discuss why immunity to SARS-CoV-2 in populations may ultimately be driven by the endemic presence of the virus and not rely on continued mass vaccination programmes.
www.nature.com
November 26, 2025 at 7:05 AM
In the autumn of 2020, we completed our initial outlook on the developing COVID-19 pandemic caused by SARS-CoV-2. At that time, our laboratories were deeply embedded in a concerted national and international effort to understand the virus.
www.nature.com/artic...
1/4
www.nature.com/artic...
1/4
Ethiopian deaths from marburg rise to eight
With an underfunded WHO and USAID, this is concerning for the country and region.
apanews.net/ethiopia...
With an underfunded WHO and USAID, this is concerning for the country and region.
apanews.net/ethiopia...
November 29, 2025 at 4:43 PM
Ethiopian deaths from marburg rise to eight
With an underfunded WHO and USAID, this is concerning for the country and region.
apanews.net/ethiopia...
With an underfunded WHO and USAID, this is concerning for the country and region.
apanews.net/ethiopia...
Reposted by Marc Veldhoen
Dr. Prasad send an email to CBER suggesting changes to the approval for respiratory vaccines based, apparently, on the conclusion of an unpublished investigation into VAERS report by unknown people. A few thoughts beyond what was already reported, based on the full email: 1/n
November 29, 2025 at 4:21 PM
Dr. Prasad send an email to CBER suggesting changes to the approval for respiratory vaccines based, apparently, on the conclusion of an unpublished investigation into VAERS report by unknown people. A few thoughts beyond what was already reported, based on the full email: 1/n
F.D.A. Attributes 10 Children’s Deaths to Covid Vaccines
The agency’s top vaccine regulator said that a review had found that the children were likely to have died “because of” the shots. But public health experts want to examine the data.
www.nytimes.com/2025...
1/2
The agency’s top vaccine regulator said that a review had found that the children were likely to have died “because of” the shots. But public health experts want to examine the data.
www.nytimes.com/2025...
1/2
F.D.A. Attributes 10 Children’s Deaths to Covid Vaccines
The agency’s top vaccine regulator said that a review had found that the children were likely to have died “because of” the shots. But public health experts want to examine the data.
www.nytimes.com
November 29, 2025 at 2:57 PM
F.D.A. Attributes 10 Children’s Deaths to Covid Vaccines
The agency’s top vaccine regulator said that a review had found that the children were likely to have died “because of” the shots. But public health experts want to examine the data.
www.nytimes.com/2025...
1/2
The agency’s top vaccine regulator said that a review had found that the children were likely to have died “because of” the shots. But public health experts want to examine the data.
www.nytimes.com/2025...
1/2
Five years of COVID taught us one thing: immunology didn’t fail, our public discourse did. My new Substack cuts through the noise with evidence, not ideology. If you want facts over fear, and science over spin, join here:
marcveldhoen.substac...
1/2
marcveldhoen.substac...
1/2
What will population immunity to SARS-CoV-2 look like in a post-vaccine world?
An updated outlook (2025)
marcveldhoen.substack.com
November 29, 2025 at 12:01 PM
Five years of COVID taught us one thing: immunology didn’t fail, our public discourse did. My new Substack cuts through the noise with evidence, not ideology. If you want facts over fear, and science over spin, join here:
marcveldhoen.substac...
1/2
marcveldhoen.substac...
1/2
Reposted by Marc Veldhoen
Een liberale partij die een sociaal-democratische partij uitsluit voor een coalitie? Absurd.
Buma ziet VVD bij blokkade blijven, coalitie met GL-PvdA voor nu afgevallen
www.nu.nl/formatie/6...
1/7
Buma ziet VVD bij blokkade blijven, coalitie met GL-PvdA voor nu afgevallen
www.nu.nl/formatie/6...
1/7
Buma ziet VVD bij blokkade blijven, coalitie met GL-PvdA voor nu afgevallen
Volgens Sybrand Buma is een kabinet met zowel de VVD als GroenLinks-PvdA niet mogelijk. Dat zei de informateur na afloop van de formatiegesprekken met de partijleiders Rob Jetten (D66) en Henri Bontenbal (CDA) op vrijdag.
www.nu.nl
November 28, 2025 at 6:38 PM
Een liberale partij die een sociaal-democratische partij uitsluit voor een coalitie? Absurd.
Buma ziet VVD bij blokkade blijven, coalitie met GL-PvdA voor nu afgevallen
www.nu.nl/formatie/6...
1/7
Buma ziet VVD bij blokkade blijven, coalitie met GL-PvdA voor nu afgevallen
www.nu.nl/formatie/6...
1/7
Reposted by Marc Veldhoen
Coalities bouw je op basis van inhoud, overeenkomsten en verantwoordelijkheid, en niet op basis van ingebeelde vijandbeelden zoals de leider van de VVD nu populistisch doet. Het is rechtse identiteitspolitiek dat de staat en samenleving beschadigd.
7/7
7/7
November 28, 2025 at 6:38 PM
Coalities bouw je op basis van inhoud, overeenkomsten en verantwoordelijkheid, en niet op basis van ingebeelde vijandbeelden zoals de leider van de VVD nu populistisch doet. Het is rechtse identiteitspolitiek dat de staat en samenleving beschadigd.
7/7
7/7
They lie, and lie, and lie some more.
Flu vaccines are not known to cause what is called spasmodic dysphonia. It isn't indicated as an adverse effect in the insert listing side effects.
1/3
Flu vaccines are not known to cause what is called spasmodic dysphonia. It isn't indicated as an adverse effect in the insert listing side effects.
1/3
November 28, 2025 at 7:43 PM
They lie, and lie, and lie some more.
Flu vaccines are not known to cause what is called spasmodic dysphonia. It isn't indicated as an adverse effect in the insert listing side effects.
1/3
Flu vaccines are not known to cause what is called spasmodic dysphonia. It isn't indicated as an adverse effect in the insert listing side effects.
1/3
Epstein-Barr virus and multiple sclerosis: A mechanism comes into focus
EBV infection is necessary to develop MS.
EBV infected cells can enter the CNS.
www.sciencedirect.co...
1/3
EBV infection is necessary to develop MS.
EBV infected cells can enter the CNS.
www.sciencedirect.co...
1/3
November 28, 2025 at 7:09 PM
Epstein-Barr virus and multiple sclerosis: A mechanism comes into focus
EBV infection is necessary to develop MS.
EBV infected cells can enter the CNS.
www.sciencedirect.co...
1/3
EBV infection is necessary to develop MS.
EBV infected cells can enter the CNS.
www.sciencedirect.co...
1/3
Een liberale partij die een sociaal-democratische partij uitsluit voor een coalitie? Absurd.
Buma ziet VVD bij blokkade blijven, coalitie met GL-PvdA voor nu afgevallen
www.nu.nl/formatie/6...
1/7
Buma ziet VVD bij blokkade blijven, coalitie met GL-PvdA voor nu afgevallen
www.nu.nl/formatie/6...
1/7
Buma ziet VVD bij blokkade blijven, coalitie met GL-PvdA voor nu afgevallen
Volgens Sybrand Buma is een kabinet met zowel de VVD als GroenLinks-PvdA niet mogelijk. Dat zei de informateur na afloop van de formatiegesprekken met de partijleiders Rob Jetten (D66) en Henri Bontenbal (CDA) op vrijdag.
www.nu.nl
November 28, 2025 at 6:38 PM
Een liberale partij die een sociaal-democratische partij uitsluit voor een coalitie? Absurd.
Buma ziet VVD bij blokkade blijven, coalitie met GL-PvdA voor nu afgevallen
www.nu.nl/formatie/6...
1/7
Buma ziet VVD bij blokkade blijven, coalitie met GL-PvdA voor nu afgevallen
www.nu.nl/formatie/6...
1/7