by WorldTribune Staff, May 20, 2025 Real World News
A Taiwanese-led study that drew from a database which included millions of Americans has found that those who took Covid mRNA injections were 30 percent more likely to develop thyroid disease a year later as opposed to those who did not take the jab, a report noted.
"The finding offers yet more evidence mRNA shots may cause autoimmune disorders long after they are given," Alex Berenson wrote in a May 16 Substack.com analysis.
The scientists who conducted the study drew on a huge medical records database called TriNetX, which includes over 116 million American patients. They chose 1.16 million people who had received Covid jabs in 2022 and 2023 and matched them to an equal number who didn’t, making sure the two groups had essentially identical medical histories.
The researchers matched vaccinated and unvaccinated patients, and followed outcomes for a full year.
"That combination gave the study very strong statistical power, meaning that its findings are probably not the result of chance," Berenson noted.
The researchers found over 4,000 additional cases of thyroid disease in the vaccinated group, suggesting millions worldwide may have developed thyroid problems from the Covid mRNA shots.
In a large subgroup of the study, consisting only of people who did not receive more than one shot in a year, the results were even worse. Those patients had almost twice the risk of developing problems.
"The thyroid is sensitive to such attacks, where the immune system targets the body itself instead of foreign invaders. Case reports have linked many different autoimmune conditions, including hepatitis, Type 1 diabetes, and rheumatoid arthritis, to the mRNAs," Berenson wrote. "But the new study offers perhaps the strongest evidence yet of the long-term autoimmune risks that mRNA shots may offer."
"The fact that moderate thyroid disease is relatively common only added to the study’s strength," Berenson noted. "Several thousand additional cases of thyroid disease were diagnosed in people who received the mRNAs compared to those who didn’t, a finding vanishingly unlikely to be a coincidence."
The thyroid, a small gland in the neck, makes hormones that help regulate metabolism. Moderate thyroid disease is not usually fatal or life-threatening, but over time an underactive thyroid can lead to high cholesterol and heart problems, while an overactive thyroid can lead to weight loss, anxiety, and an irregular heartbeat.
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