Instead of using standard vaccine practices (a dead/damaged/live version of the virus) to train your immune system, we are using these synthetic entities called microspheres. They are made of the same material as internal sutures, and your body takes them up and is able to have a memory response. Check out this youtube clip of the microspheres in action: http://www.youtube.com/watch?v=0XKy9byo67w

The advantage of using microspheres is that the vaccine is now monumentally safer than previous gene therapy or other vaccine attempts.