I am pretty sure that it would be illegal to give people a vaccine designed to induce gene therapy that suppresses your immune system in order to ensure people

I am pretty sure that it would be illegal to give people a vaccine designed to induce gene therapy that suppresses your immune system in order to ensure people need to get it more than once. And still, I actually trust the pharmaceutical companies to not do this more than I trust governments to not give them permission to do it, as they have been much better actors in the pandemic than almost every government.