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    Correcting this week’s misinformation: week of August 7, 2025

    Who is telling the truth about aluminum?

    The Claim:

    In a new Trial Site News article, HHS Secretary RFK Jr. claims that a new vaccine safety study is misleading because it leaves out important data and may have been influenced by people with ties to drug companies. Kennedy asserts that we cannot trust the study’s conclusion that aluminum in vaccines is safe for kids.

    The Facts:

    Aluminum is the third most abundant element on earth and is present in many of the foods we eat, in much higher quantities than found in vaccines. Any aluminum injected from vaccines is metabolized in the body, and the vast majority of it is excreted within weeks

    Secretary Kennedy makes many errors in his analysis of the Danish study, which is the clearest evidence yet that aluminum adjuvants in vaccines are safe.

    He says the study left out the kids most likely to be harmed, such as children who died before age two or already had serious health problems. Then he suggests the researchers did this on purpose. But the study only looked at what happened after kids turned two. This was done so early that health issues wouldn’t be mistaken for vaccine problems.

    He also protests that 34,547 kids were removed because their vaccine records seemed “implausible.” The study explains these records were clearly wrong, probably due to mistakes made when the vaccine registry had problems from 2014 to 2017. The authors add that leaving out these kids would actually push the results toward showing no effect, not toward making vaccines look safer.

    He says the study has “healthy subject bias” and “collider bias” after adjusting for how often kids saw their family doctor. But researchers adjusted for doctor visits to account for differences in healthcare use, which is normal in studies like this. Researchers adjust for how often people visit the doctor so any health differences they see come from the vaccine or medicine being studied, not from the fact that frequent doctor-visitors are already different from those who rarely go.

    He also claims the researchers hid a “zero-aluminum” (unvaccinated) group in the data. Actually, only about 1.2% of the kids were unvaccinated. The authors point out that comparing such a tiny, possibly very different group would skew the results and weaken the statistics. This is standard logic in observational studies.

    These are just some of the flaws in this analysis. The study is reliable. It used health data from over 1.2 million children in Denmark, making it one of the largest studies of its kind. The researchers tracked these children for many years and used reliable national health records to look for long-term health problems like asthma, autism, and other chronic illnesses. They carefully adjusted for things like age, sex, and health history to make sure the comparisons were fair. They also ran extra tests and used different ways of looking at the data to double-check their results. Because of its size, long follow-up, and thorough design, the study gives strong evidence that aluminum in vaccines does not increase the risk of chronic diseases in children.

    Did vaccines eradicate smallpox?

    The Claim:

    Because this “Midwestern Doctor” says they didn’t. And he thinks we should take that lesson and learn something about today’s vaccines.

    The Facts:

    Smallpox is believed to have appeared around 10,000 BCE. In the 12,000 years since, smallpox has had a devastating impact on humanity, killing millions. About 300,000 lives were lost worldwide in just the 77 years before its eradication

    American Revolutionary War figures, including Thomas Jefferson, prioritized the vaccination of their own families. Jefferson had his children vaccinated against smallpox, understanding the risks associated with the disease and the potential for vaccination to save lives.

    Inoculation, a precursor to vaccination, was a common practice during that time to combat smallpox. Inoculation involved deliberately infecting individuals with a mild form of smallpox to induce immunity. George Washington, for example, ordered the inoculation of his troops during the winter of 1777-1778 at Valley Forge. This proactive measure aimed to prevent outbreaks and reduce the severity of smallpox cases among his soldiers.

    In 1959, the WHO announced its goal of eradicating smallpox, but it had a rocky start. In 1967, they started the Intensified Eradication Program,  with better vaccines and new tools to fight smallpox. One such tool was a system to track cases and large-scale vaccination campaigns. The last naturally occurring case of smallpox was in 1977. Smallpox was eradicated from humans in 1980. It now only exists in a lab.

    Funny that a disease more than 12,000 years old disappeared within 10 years of the intensified eradication program if vaccines were never shown to work.

    Will COVID vaccines ruin your eyes?

    The Claim:

    small study of 64 adults found short-term changes in a thin layer of eye cells after two COVID vaccines and said people with low counts or corneal transplants should be checked. Some anti-vaccers claim that the vaccines destroy these non-renewable cells and cause permanent damage.

    The Facts:

    This analysis is another flawed conclusion looking for an argument. In this case, anti-vaxxers are claiming the vaccines cause permanent damage, yet ignore the study’s conclusions where “changes in corneal endothelium occur in the short term” and weren’t found to be permanent.

    review of the eye after COVID vaccination by the American Academy of Ophthalmology has also shown rare ocular effects. However, those effects are due to an abnormal immune response to the vaccine, and the review notes that “the benefits of receiving the vaccine far outweigh the rare ocular risks.”

    Disclaimer: Science is always evolving and our understanding of these topics may have evolved too since this was originally posted. Be sure to check out our most recent posts and browse the latest Just the Facts Topics for the latest.

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