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
Where we are is that for some patients, antibodies responding to own fibres may be involved in pain symptoms. But this remains uncertain. Differences in tissue binding are absent or small, which may be a technical issue, or targets involve different/specific cell types.
7/8
7/8
November 25, 2025 at 4:14 PM
Where we are is that for some patients, antibodies responding to own fibres may be involved in pain symptoms. But this remains uncertain. Differences in tissue binding are absent or small, which may be a technical issue, or targets involve different/specific cell types.
7/8
7/8
Altered action potentials could be observed.
Adoptive transfer of IgG from patients, not controls or those without pain symptoms, seem to result in similar hypersensitivity symptoms in mice. It seems a peripheral, neuronal site of action, not brain.
4/8
Adoptive transfer of IgG from patients, not controls or those without pain symptoms, seem to result in similar hypersensitivity symptoms in mice. It seems a peripheral, neuronal site of action, not brain.
4/8
November 25, 2025 at 4:13 PM
Altered action potentials could be observed.
Adoptive transfer of IgG from patients, not controls or those without pain symptoms, seem to result in similar hypersensitivity symptoms in mice. It seems a peripheral, neuronal site of action, not brain.
4/8
Adoptive transfer of IgG from patients, not controls or those without pain symptoms, seem to result in similar hypersensitivity symptoms in mice. It seems a peripheral, neuronal site of action, not brain.
4/8
Some will keep lying to their followers, making unrealistic claims and pronounsations. Vaccines causeing "sterile" immunity do not exist. It may sometimes appear like it, due to the slow pathogen, but antibodies, our only infection protection: always, really always, wane!
November 24, 2025 at 9:35 PM
Some will keep lying to their followers, making unrealistic claims and pronounsations. Vaccines causeing "sterile" immunity do not exist. It may sometimes appear like it, due to the slow pathogen, but antibodies, our only infection protection: always, really always, wane!
What is wrong with these people?
Exept that all respiratory viruses are transferable via air, all of this is nonsense.
Exept that all respiratory viruses are transferable via air, all of this is nonsense.
November 23, 2025 at 8:53 PM
What is wrong with these people?
Exept that all respiratory viruses are transferable via air, all of this is nonsense.
Exept that all respiratory viruses are transferable via air, all of this is nonsense.
Be very careful with these posts. Never take any medicine, no matter how innocent it may seem, without consulting a qualified physician.
Doxycycline is an antibiotic. It inhibits the protein-generating machinery (ribosomes) of bacteria. This prevents bacteria from multiplying
1/6
Doxycycline is an antibiotic. It inhibits the protein-generating machinery (ribosomes) of bacteria. This prevents bacteria from multiplying
1/6
November 23, 2025 at 8:03 PM
Be very careful with these posts. Never take any medicine, no matter how innocent it may seem, without consulting a qualified physician.
Doxycycline is an antibiotic. It inhibits the protein-generating machinery (ribosomes) of bacteria. This prevents bacteria from multiplying
1/6
Doxycycline is an antibiotic. It inhibits the protein-generating machinery (ribosomes) of bacteria. This prevents bacteria from multiplying
1/6
For years, people unable to challenge science have resorted to personal attacks, smear campaigns to sow doubt. They’ve never produced a shred of evidence. Now the new X feature shows exactly what I’ve said all along: those accounts aren’t mine. I don't need to hide.
2/3
2/3
November 23, 2025 at 11:14 AM
For years, people unable to challenge science have resorted to personal attacks, smear campaigns to sow doubt. They’ve never produced a shred of evidence. Now the new X feature shows exactly what I’ve said all along: those accounts aren’t mine. I don't need to hide.
2/3
2/3
When I have something to say, I say it openly under my own name. Claims that I hide behind “many accounts” are noise from anti-science factions who can’t back up their accusations. Facts matter. Integrity matters. I stand by both.
1/3
1/3
November 23, 2025 at 11:14 AM
When I have something to say, I say it openly under my own name. Claims that I hide behind “many accounts” are noise from anti-science factions who can’t back up their accusations. Facts matter. Integrity matters. I stand by both.
1/3
1/3
No, SARS-CoV-2 is not reducing our intelligence
Why this myth refuses to die
The idea that SARS-CoV-2 infections, or worse, reinfections, are collectively reducing human intelligence does not hold.
open.substack.com/pu...
Why this myth refuses to die
The idea that SARS-CoV-2 infections, or worse, reinfections, are collectively reducing human intelligence does not hold.
open.substack.com/pu...
November 22, 2025 at 3:55 PM
No, SARS-CoV-2 is not reducing our intelligence
Why this myth refuses to die
The idea that SARS-CoV-2 infections, or worse, reinfections, are collectively reducing human intelligence does not hold.
open.substack.com/pu...
Why this myth refuses to die
The idea that SARS-CoV-2 infections, or worse, reinfections, are collectively reducing human intelligence does not hold.
open.substack.com/pu...
How does MDPI keep stuffing their journals?
By cold emailing random scientists about “special issues” in fields they’ve never worked in, but hey, who needs expertise when the business model is volume?
1/2
By cold emailing random scientists about “special issues” in fields they’ve never worked in, but hey, who needs expertise when the business model is volume?
1/2
November 21, 2025 at 10:56 PM
How does MDPI keep stuffing their journals?
By cold emailing random scientists about “special issues” in fields they’ve never worked in, but hey, who needs expertise when the business model is volume?
1/2
By cold emailing random scientists about “special issues” in fields they’ve never worked in, but hey, who needs expertise when the business model is volume?
1/2
Approximately a year after the JN.1-based vaccination, neutralization titer has waned against all variants tested. That is physiological. Importantly: neutralisation levels improved from previous year: selection against conserved epitopes, maturation of immunity!
4/4
4/4
November 21, 2025 at 9:02 PM
Approximately a year after the JN.1-based vaccination, neutralization titer has waned against all variants tested. That is physiological. Importantly: neutralisation levels improved from previous year: selection against conserved epitopes, maturation of immunity!
4/4
4/4
B.1.1, BA.5, XBB.1.5, JN.1, LP.8.1, XEC, NB.1.8.1, XFG and BA.3.2.
Remember: this is what is present in serum. There will be some differences, but there are plenty of neutralising antibodies: these will be selected upon infection.
3/4
Remember: this is what is present in serum. There will be some differences, but there are plenty of neutralising antibodies: these will be selected upon infection.
3/4
November 21, 2025 at 9:02 PM
B.1.1, BA.5, XBB.1.5, JN.1, LP.8.1, XEC, NB.1.8.1, XFG and BA.3.2.
Remember: this is what is present in serum. There will be some differences, but there are plenty of neutralising antibodies: these will be selected upon infection.
3/4
Remember: this is what is present in serum. There will be some differences, but there are plenty of neutralising antibodies: these will be selected upon infection.
3/4
Ook na de verkiezingen blijft er bolletjes terreur. Populisten die lawaai maken, ophef en chaos willen, en daarom context expres weglaten.
Zeer bedroevend.
Zeer bedroevend.
November 21, 2025 at 8:35 PM
Ook na de verkiezingen blijft er bolletjes terreur. Populisten die lawaai maken, ophef en chaos willen, en daarom context expres weglaten.
Zeer bedroevend.
Zeer bedroevend.
Het vergelijken van de 1e en 2e golf zonder context is zinloos. De situatie was totaal anders: de 2e golf werd gedomineerd door de Alpha-variant, veel besmettelijker dan het oorspronkelijke virus. Daarmee verandert de hele dynamiek van infecties én opnames.
1/4
1/4
November 21, 2025 at 5:39 PM
Het vergelijken van de 1e en 2e golf zonder context is zinloos. De situatie was totaal anders: de 2e golf werd gedomineerd door de Alpha-variant, veel besmettelijker dan het oorspronkelijke virus. Daarmee verandert de hele dynamiek van infecties én opnames.
1/4
1/4
No, SARS-CoV-2 is not reducing our intelligence
This myth refuses to die and is regularly brought back by the COVID-19 Doom cult. It is scary and engineered to go viral.
A substack to be posted in the weekend.
1/2
This myth refuses to die and is regularly brought back by the COVID-19 Doom cult. It is scary and engineered to go viral.
A substack to be posted in the weekend.
1/2
November 21, 2025 at 2:01 PM
No, SARS-CoV-2 is not reducing our intelligence
This myth refuses to die and is regularly brought back by the COVID-19 Doom cult. It is scary and engineered to go viral.
A substack to be posted in the weekend.
1/2
This myth refuses to die and is regularly brought back by the COVID-19 Doom cult. It is scary and engineered to go viral.
A substack to be posted in the weekend.
1/2
Despite all the evidence, the large body of data that we srlect (against everything) antibodies and T cells, expand and improve them. So just say: "no".
It is so sad to see people denying reality and alter their lives based on fantasy and disinformation.
It is so sad to see people denying reality and alter their lives based on fantasy and disinformation.
November 21, 2025 at 1:03 PM
Despite all the evidence, the large body of data that we srlect (against everything) antibodies and T cells, expand and improve them. So just say: "no".
It is so sad to see people denying reality and alter their lives based on fantasy and disinformation.
It is so sad to see people denying reality and alter their lives based on fantasy and disinformation.
Then again, the same ACIP member things SARS-CoV-2 was a CIA operation. You just can´t make this stuff up. It is horrible and will cause much damage.
2/2
2/2
November 20, 2025 at 1:00 PM
Then again, the same ACIP member things SARS-CoV-2 was a CIA operation. You just can´t make this stuff up. It is horrible and will cause much damage.
2/2
2/2
ACIP member Robert Malone pretends this was not the aim all along: to spread anti-vax and anti-science information from formarly reputable organisation.
It will cost lives, it will harm many, result in much heartache, but hey: MAHA.
bsky.app/profile/mar...
1/2
It will cost lives, it will harm many, result in much heartache, but hey: MAHA.
bsky.app/profile/mar...
1/2
November 20, 2025 at 1:00 PM
ACIP member Robert Malone pretends this was not the aim all along: to spread anti-vax and anti-science information from formarly reputable organisation.
It will cost lives, it will harm many, result in much heartache, but hey: MAHA.
bsky.app/profile/mar...
1/2
It will cost lives, it will harm many, result in much heartache, but hey: MAHA.
bsky.app/profile/mar...
1/2
Some ignoramuses will overinterpret and poor their nonsense ideological sause over this paper. That is baffling nonsense.
9/9
9/9
November 20, 2025 at 9:10 AM
Some ignoramuses will overinterpret and poor their nonsense ideological sause over this paper. That is baffling nonsense.
9/9
9/9
Also "complement and coagulation cascades, neutrophil extracellular trap (NET) formation, platelet activation, the estrogen signaling pathway, and thyroid hormone synthesis".
7/9
7/9
November 20, 2025 at 9:09 AM
Also "complement and coagulation cascades, neutrophil extracellular trap (NET) formation, platelet activation, the estrogen signaling pathway, and thyroid hormone synthesis".
7/9
7/9
Indeed, the authors found recently infected and hospitalised patients to have a different plasma content from not infected controls. They also found drug metabolites in the infection group, such as Tamoxifen, Olanzapine, and Ornidazole.
5/9
5/9
November 20, 2025 at 9:09 AM
Indeed, the authors found recently infected and hospitalised patients to have a different plasma content from not infected controls. They also found drug metabolites in the infection group, such as Tamoxifen, Olanzapine, and Ornidazole.
5/9
5/9
Non-infected controls (no infection controls) were vaccinated, ~200 days before sampling. No vaccine details about those infected, with several other differences, such as age, smoking, etc. The authors set themselves up for a fail. Yet, published in a metabolimics journal.
3/9
3/9
November 20, 2025 at 9:09 AM
Non-infected controls (no infection controls) were vaccinated, ~200 days before sampling. No vaccine details about those infected, with several other differences, such as age, smoking, etc. The authors set themselves up for a fail. Yet, published in a metabolimics journal.
3/9
3/9
The CDC pages have now been hijacked for state sponsored disinformation. It is terrible to see this happening. This is ideology, unscientific, over facts, data and the scientific method.
November 20, 2025 at 7:03 AM
The CDC pages have now been hijacked for state sponsored disinformation. It is terrible to see this happening. This is ideology, unscientific, over facts, data and the scientific method.
Deze kunnen geen DNA aantonen in de aanwezigheid van zeer veel RNA.
Maar dit was echt lachen! Hij snapt echt helemaal niet wat Ct waarden zijn! Ct=de cycle waarbij het signaal over de vooraf gestelde drempelwaarde komt! Hij beschift de vermenigvuldiging! Vreselijk!
9/10
Maar dit was echt lachen! Hij snapt echt helemaal niet wat Ct waarden zijn! Ct=de cycle waarbij het signaal over de vooraf gestelde drempelwaarde komt! Hij beschift de vermenigvuldiging! Vreselijk!
9/10
November 19, 2025 at 10:12 PM
Deze kunnen geen DNA aantonen in de aanwezigheid van zeer veel RNA.
Maar dit was echt lachen! Hij snapt echt helemaal niet wat Ct waarden zijn! Ct=de cycle waarbij het signaal over de vooraf gestelde drempelwaarde komt! Hij beschift de vermenigvuldiging! Vreselijk!
9/10
Maar dit was echt lachen! Hij snapt echt helemaal niet wat Ct waarden zijn! Ct=de cycle waarbij het signaal over de vooraf gestelde drempelwaarde komt! Hij beschift de vermenigvuldiging! Vreselijk!
9/10
Hierna volgen de gebruikelijke leugens en onzin. Een gove leugen is dit. qPCR kan en detecteerd kleine stukjes DNA. Daarna wordt aangenomen dat dit stukje het hele plasmide voorsteld: de hoeveelheid wordt expres overschat!
Dan worden de foute methodes aangehaald.
8/10
Dan worden de foute methodes aangehaald.
8/10
November 19, 2025 at 10:12 PM
Hierna volgen de gebruikelijke leugens en onzin. Een gove leugen is dit. qPCR kan en detecteerd kleine stukjes DNA. Daarna wordt aangenomen dat dit stukje het hele plasmide voorsteld: de hoeveelheid wordt expres overschat!
Dan worden de foute methodes aangehaald.
8/10
Dan worden de foute methodes aangehaald.
8/10
Meer valse beweringen: cGAS-STING detecteerd alle DNA en RNA, van virussen, bacterieen, enz. Het wordt helemaal niet over-gestimuleerd. De cellen doen hun werk, breken het DNA en RNA af, en worden heel specifiek gedood.
7/10
7/10
November 19, 2025 at 10:12 PM
Meer valse beweringen: cGAS-STING detecteerd alle DNA en RNA, van virussen, bacterieen, enz. Het wordt helemaal niet over-gestimuleerd. De cellen doen hun werk, breken het DNA en RNA af, en worden heel specifiek gedood.
7/10
7/10