我查了下，这是AI说的（虽然AI也会出错，而且是confident and wrong）：

mRNA vaccines do not cause gene mutation or alter your DNA. The claim is misinformation that has been thoroughly debunked by the Centers for Disease Control and Prevention (CDC), the Mayo Clinic, and other scientific and medical experts. 

Here is an explanation of why mRNA vaccines cannot change your genetic code:

• The location of your DNA Your DNA is located inside the nucleus of your cells.
• How mRNA vaccines work The mRNA in a vaccine stays in the cell's cytoplasm, the outer part of the cell, and never enters the nucleus.
• The function of mRNA An mRNA vaccine delivers a set of instructions to your cells to create a harmless spike protein. Once the instructions have been used, the cell breaks down and disposes of the mRNA molecule.
• The absence of necessary enzymes For the vaccine's mRNA to be integrated into your DNA, a specific enzyme called reverse transcriptase would be needed, but this is not present in mRNA vaccines.