The mRNA COVID-19 vaccines — like many other vaccines — can contain small amounts of DNA left over from the manufacturing process. There’s no evidence this residual DNA causes “turbo cancer,” or very aggressive cancer. Nor did Moderna admit that “mRNA Jabs Cause Turbo-Cancer,” contrary to an online article that misconstrues a line from a patent application.
Vaccines can contain trace amounts of materials left over from their manufacturing process. One of these materials is DNA, which can remain in both mRNA vaccines and a variety of older vaccines. This DNA is expected and considered safe, and there are purification and quality control steps meant to ensure it is present within regulatory limits.
We have covered unsubstantiated claims that residual DNA in mRNA COVID-19 vaccines is considered “adulteration” or integrates into people’s DNA and causes cancer. Representatives from regulatory agencies and various academic experts told us there isn’t reason to believe the small amounts of residual DNA in the mRNA vaccines would integrate into a person’s cellular DNA and cause cancer. And legal experts told us that the residual DNA would not be considered adulteration.
(For more about residual DNA in mRNA vaccines, read our article “COVID-19 Vaccines Have Not Been Shown to Alter DNA, Cause Cancer.”)
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