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Wisconsin Watch partners with Gigafact to produce fact briefs — bite-sized fact checks of trending claims. Read our methodology to learn how we check claims.

No.

Gene therapy modifies a person’s genes to treat disease, according to the U.S. Food and Drug Administration.

Richard Watanabe, physiology and neuroscience professor at the University of Southern California medical school, said COVID-19 vaccines do not alter human genes or insert modified genes.

The vaccines do not enter the nucleus of the cell where DNA is located, so they cannot influence genes, according to the federal Centers for Disease Control and Prevention.

At a Feb. 26, 2023, roundtable hosted by U.S. Sen. Ron Johnson, R-Wis., Dr. Robert Malone made the gene therapy claim.

The scientist cited to Wisconsin Watch remarks by Bayer AG pharmaceuticals executive Stefan Oelrich. A Bayer spokesperson told Full Fact that Oelrich misspoke and the vaccines aren’t gene therapy.

The New York Times and the Washington Post have identified Malone as a prominent purveyor of COVID-19 vaccine misinformation.

Fact-checkers have repeatedly debunked the gene therapy claims.

This fact brief is responsive to conversations such as this one.

Sources

Food and Drug Administration: What is Gene Therapy?

Google Docs: Richard Watanabe email

Centers for Disease Control: Understanding How COVID-19 Vaccines Work

Rumble: What Are Federal Health Agencies and the COVID Cartel Hiding? | Feb. 26

Google Docs: Robert Malone 2/28/24 email

Rumble: Head of Pharma at Bayer admits that the mRNA vaccines are gene therapy

Full Fact: Bayer executive wrongly said mRNA vaccines are gene therapy

AP News: No, COVID-19 vaccines aren’t gene therapy

PolitiFact: Joe Rogan falsely says mRNA vaccines are ‘gene therapy’

Reuters: mRNA vaccines are distinct from gene therapy, which alters recipient’s genes

Washington Post: A vaccine scientist’s discredited claims have bolstered a movement of misinformation

New York Times: Robert Malone Spreads Falsehoods About Vaccines. He Also Says He Invented Some.

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Tom Kertscher joined Wisconsin Watch as a full-time reporter in October 2024. He started as a fact checker in January 2023 and contributes to our collaboration with the The Gigafact Project to fight misinformation online. Kertscher is a former longtime newspaper reporter, including at the Milwaukee Journal Sentinel. He is a contributing writer for Milwaukee Magazine and sports freelancer for The Associated Press.