evidence: A Facebook post shared thousands of times has claimed that "the new vaccine for Covid-19 will be the first of its kind EVER. It will be an mRNA vaccine which will literally alter your DNA. It will wrap itself into your system. You will essentially become a genetically modified human being." [...] It’s also true that mRNA vaccines are very novel, and if one were to be approved for human use for Covid-19, it would be the first of its kind. [...] It doesn’t change the body’s DNA or "wrap" itself. mRNA vaccines are generally viewed positively as they are cheap, and don’t involve using part of a virus-like some traditional vaccines.