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Do COVID vaccines cause seven cancers?

The Claim:

In an interview on Mike Lindell’s station, a McCullough Foundation scientist claims that COVID vaccines cause cancers of the breast, colon, prostate, bladder, stomach, lung, and thyroid.

The Facts:

Cancer happens when cells grow and divide out of control. This usually happens because of changes in DNA (called mutations) that affect how a cell works. Vaccines do not change our DNA or the basic structure of our cells.

Dr. Paul Offit explains why the small pieces of DNA in COVID mRNA vaccines cannot harm us. Our cells have strong defenses that protect us:

  • First, enzymes (special proteins that break things down) in the cell destroy foreign DNA.
  • Second, these DNA pieces do not have the signal needed to enter the nucleus (the part of the cell where our DNA is kept).
  • Third, they do not have an enzyme called integrase, which would be needed to attach to our DNA.

Because of these protections, these DNA pieces cannot change our genes or cause cancer. There is also no good scientific evidence that COVID-19 vaccines cause “turbo cancer” or any other type of cancer.

The scientist points to a study from South Korea that suggests COVID vaccines might raise cancer risk. But experts say this study has serious problems.

The researchers did not consider important factors. For example, people who get vaccines often go to the doctor more and get more cancer screenings (tests to look for cancer). This can make it seem like more cancers are happening, even when they are just being found more often.

The study also followed people for a very short time—sometimes only a month, and at most a year. Cancer usually takes many years to develop, so this is not long enough to show a real link.

There is still no evidence that COVID vaccines cause cancer. Many of the strongest cancer-causing agents (called carcinogens) take years to lead to cancer.

Also, cancers in younger people have been rising since the early 1990s. This increase started long before COVID vaccines existed.

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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