What did @liberoinforma_nutrition actually say?
The video presents a speech by Oregon pediatrician Paul Thomas, who claims his practice data showed vaccines caused "four to 500% more" allergies, autoimmune conditions, and neurodevelopmental issues in vaccinated children compared to unvaccinated ones. He frames his license suspension as retaliation for publishing inconvenient truth rather than a regulatory response to legitimate medical concerns. The narrative is classic suppressed-scientist storytelling, and it deserves serious scrutiny.
Thomas published a paper in 2020 in the International Journal of Environmental Research and Public Health with co-author James Lyons-Weiler. The Oregon Medical Board suspended his license in December 2020, and the journal retracted the study in 2021. Those are the facts on the table. What they mean is a different question.
Does the science back this up?
No, and the problems with Thomas's study are methodological, not political. The retraction notice from the journal cited concerns that go to the heart of the research design, not its conclusions.
The study used a "Vaccine Friendly Plan" cohort, meaning children who saw Thomas were already self-selected by parents who were vaccine-hesitant. This creates profound confounding: families who reject vaccines often differ systematically from the general population in diet, healthcare-seeking behavior, antibiotic use, and socioeconomic status. None of these variables were adequately controlled. The journal editors who retracted it noted the study could not establish that any observed differences were caused by vaccination status rather than these other factors.
By contrast, large population-level studies tell a different story. Hviid et al. (2019, Annals of Internal Medicine), covering 650,000 Danish children, found no association between the MMR vaccine and autism. Taylor et al. (2002, BMJ) found no clustering of developmental regression following MMR vaccination. The Institute of Medicine's 2011 comprehensive review found no credible evidence linking the childhood vaccine schedule to autoimmune or neurodevelopmental harms at population scale.
What did they get wrong (or right)?
Thomas is right that observational data from a single practice is publishable and can be peer reviewed. That part is accurate. Peer review does not equal correct, and "published in an international journal" does not mean the findings are valid. The journal retracted it for cause, and the reasons were scientific, not bureaucratic.
The claim of "four to 500% more" conditions in vaccinated children is deeply misleading given the study's design flaws. You cannot draw causal conclusions from an uncontrolled retrospective cohort in a single ideologically skewed practice. The comparison group, the "unvaccinated" children, were not a random sample. They were patients who actively chose Thomas's care specifically because of his vaccine-skeptical approach.
On the license suspension: the Oregon Medical Board's action was triggered not only by the study but by an investigation into Thomas's prescribing practices, including providing medical exemptions from school vaccine requirements at rates far exceeding state norms. Framing the suspension purely as scientific censorship omits that context entirely.
What should you actually know?
The vaccinated-versus-unvaccinated study design sounds compelling but is notoriously difficult to execute honestly. Truly unvaccinated populations in high-income countries are not randomly distributed. They cluster in communities with specific socioeconomic, dietary, and healthcare patterns. Any study that does not rigorously account for this will produce garbage, regardless of which direction the findings point.
The largest and most rigorous studies on the childhood vaccine schedule consistently show no signal for the harms Thomas describes at the scale he claims. That does not mean vaccines have zero side effects; they do, and those are documented in VAERS and in the package inserts. It means the magnitude Thomas claims, hundreds of percent increases in broad diagnostic categories, is not supported by evidence that meets basic epidemiological standards.
Thomas's story is emotionally compelling. That is precisely why it spreads. But the scientific record on childhood vaccination and long-term health outcomes does not support his central thesis, and the mechanism by which his study was removed from the literature was peer review working as intended, not suppression.