Several popular social media posts over the last month claim that mRNA in COVID-19 vaccines stands for “modified RNA” rather than messenger RNA. These posts, often using the hashtag #modRNA, claim that mRNA vaccines are designed to stay in the body longer and permanently alter DNA.
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The persistence of the misinformation that mRNA vaccines alter DNA elevates its risk. Debunking talking points may explain why the claim that the mRNA in the vaccines is “modified” is based on a misunderstanding of mRNA technology. COVID-19 vaccines contain synthetic mRNA that has instructions for cells to produce a spike protein like the protein in SARS-CoV-2. Separate from the virus, this protein is harmless. Its only function is to train the immune system to recognize and fight the virus before it is naturally flushed from the body. Emphasizing that there is no evidence that vaccine mRNA or spike proteins have negative health effects is recommended. Fact Checking Source(s): Health Feedback, MSKCC
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