This Medcram video explains how J&J vaccine works: https://www.youtube.com/watch?v=13qT7wLxkvU#t=1m30s https://www.youtube.com/watch?v=13qT7wLxkvU#t=1m30s The

This Medcram video explains how J&J vaccine works: https://www.youtube.com/watch?v=13qT7wLxkvU#t=1m30s https://www.youtube.com/watch?v=13qT7wLxkvU#t=1m30s They splice DNA to put in a virus and the end result is exactly the same as the mRNA vaccines - custom spliced RNA code running in your cells.