Fact Check: Do mRNA COVID vaccines change genetic structures in ways linked to cancer or autoimmune disorders?

Media Bias Fact Check (MBFC) publishes daily vetted fact checks from verified IFCN-approved sources. Each claim is independently reviewed for accuracy and context.

Claimant: Alex Berenson

Claim: “mRNA COVID vaccines change genetic structures in ways linked to cancer and autoimmune disorders.”

Rating: BLATANT LIE

Explanation: Berenson misrepresented a German study that examined immune-cell epigenetic responses after mRNA vaccination. The research documented temporary histone changes associated with immune memory—not genetic alterations, not DNA modification, and not any link to cancer. Study authors explicitly refuted his claims.

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Date: 11/27/2025

 

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Last Updated on November 29, 2025 by Media Bias Fact Check

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