Mark is the one who came up with the vaccine protocol, so it should be in his book you are reading.
Just searched his book (PDF file) for vaccine protocol and on page 288 there are some YouTube links, but of course YT deplatformed the G2C some time ago. Digging around the G2C website I found a video explaining the vaccine protocol here;
Disclaimer:The protocols described on this site are official sacraments of the Genesis II Church of Health and Healing. The reader accepts 100% responsibility for any and all use made of any information herein.