evidence: Despite being unsupported by research, claims about COVID-19 mRNA vaccines interfering with human DNA continue to circulate. This week, one in six adults (17%) surveyed in four states said they’d heard the claim in the last 7 days; 72% of those believed it could be true. Persistence of this claim may be due to concerns recently expressed by Florida’s Surgeon General that mRNA vaccines can carry foreign DNA into a cell. However, mRNA only enters the cell cytoplasm and does not enter the cell’s nucleus where human DNA is found. Messenger RNA (mRNA) in COVID-19 vaccines teaches cells to make a spike protein from the virus, helping the body fight the actual virus. Once the mRNA gives instructions to the cells, the body breaks it down so it cannot harm the body. The survey asked if people had heard that "DNA fragments in mRNA vaccines change your DNA, impact reproductive health, and can cause cancer." Some adults were more likely to hear the claim than others.