It's a battle neuther of you is going to win so take the discussion off the table. Talk about other things - there's a universe of other topics.

For all we know, she may have reduced her lifespan with the jab, so make the most of the time she has left. Let her know you love her even if you can't agree on some things.

Someday, either through natural or jab-induced causes, one of you will no longer be around for the other to argue with and that's not the time for the one left to realize that precious time that could have been spent with someone you love was wasted because you couldn't force/reach agreement on this topic.