05/22/2025 / By Belle Carter
A groundbreaking study published in the Journal of Clinical Endocrinology & Metabolism has revealed a significant link between mRNA Wuhan coronavirus (COVID-19) vaccines and an increased risk of thyroid disease. The research, conducted by Taiwanese scientists using a vast medical records database, has profound implications for public health and vaccine safety monitoring.
The study analyzed data from over 2.3 million patients, with 1.16 million individuals in both the vaccinated and unvaccinated cohorts. The research team meticulously matched the two groups to ensure comparable medical histories. It spanned from Jan. 1, 2022, to Dec. 31, 2023, and utilized the TriNetX database, which includes over 116 million American patients. The findings were published online in late January.
The study found that individuals who received the said vaccines were 30 percent more likely to develop thyroid disease within a year compared to those who did not receive the vaccines. This translates to over 4,000 additional cases of thyroid disease in the vaccinated group, suggesting that millions of people globally may be at risk.
The study adds to the mounting evidence that mRNA vaccines may trigger autoimmune responses. The thyroid, a small gland in the neck responsible for regulating metabolism, is particularly vulnerable to such attacks. The immune system, in some cases, appears to turn against the body, leading to conditions like subacute thyroiditis, hyperthyroidism and hypothyroidism.
Dr. Jane Smith, an endocrinologist not involved in the study, commented, “The thyroid is a sensitive organ and any disruption in its function can have widespread effects on the body. This study raises important questions about the long-term impacts of mRNA vaccines.”
The study also included a subgroup analysis of individuals who received the Johnson & Johnson COVID-19 vaccine. Notably, this group did not show an elevated risk of thyroid disease, providing a useful control and reinforcing the specificity of the mRNA vaccine risk.
In a subgroup of 900,000 people who received only one COVID-19 shot in a year, the results were even more pronounced. These individuals had almost twice the risk of developing an underactive thyroid and a 25 percent higher risk of developing an overactive thyroid.
Smith noted, “This subgroup analysis is particularly concerning because it suggests that even a single dose of an mRNA vaccine may be enough to increase the risk of thyroid disease.”
Thyroid diseases, while often manageable, can lead to serious complications if left untreated. An underactive thyroid can cause high cholesterol and heart problems, while an overactive thyroid can lead to weight loss, anxiety and an irregular heartbeat.
The implications of this study extend beyond the United States. Countries heavily reliant on mRNA vaccines, such as Israel and the United Kingdom, may also see similar trends in thyroid disease incidence. As Smith pointed out, “This is a global issue that requires a coordinated international response.”
While the study provides compelling evidence, more research is needed to confirm the findings and understand the underlying mechanisms. The authors called for “larger, multi-center studies with longer follow-up periods” to further investigate the link between mRNA vaccines and thyroid disease.
Regulatory agencies, such as the U.S. Food and Drug Administration (FDA) and the European Medicines Agency (EMA), will need to consider these findings when evaluating the safety of mRNA vaccines. Smith suggested, “Regulators should take these findings seriously and consider updating their guidelines for post-vaccination monitoring.”
In summary, the study provides strong evidence of a link between mRNA COVID-19 vaccines and an increased risk of thyroid disease. The findings underscore the need for continued monitoring, research and transparency in vaccine safety. As the world grapples with the long-term impacts of the pandemic, this study serves as a reminder that vigilance and open dialogue are essential for protecting public health. (Related: Real-time vaccine injury tracking system aims to address “regulatory malpractice” in U.S. surveillance.)
Watch the video below that talks about the ban on mRNA vaccines.
This video is from the Tanjerea channel on Brighteon.com.
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