All vaccines can best be compared to having to apply a Windows update. They "rewrite" a portion of your firmware by inserting DNA into the nucleus. This is a forced mutation. As with any chemical reaction, there are almost always parallel reactions that happen that are neglected in textbook treatments of problems. I am quite sure that if you gave me a year or two that I could have inserted the appropriate DNA vector into a virus to make it more infectious. The people who released this on us have gone to "the Dark Side".