This is fascinating as it works contrary to how most vaccines work. The usual method is to teach the immune system to attack things ( Covid, Polio, Influenza, etc, etc). This does the opposite, it makes the immune system forget to attack things it shouldn’t be attacking. The list of autoimmune diseases is long, and many people suffer from them.

That said, this is only a Phase 1 Clinical trial. That will test if the vaccine is safe, and see what its side-effects are. The journey from amazing lab results to a viable treatment is rocky, and often ends in failure. Still, if this can prove its potential as a treatment it will be revolutionary.