Exact same thing.
“Let me put this prick inside you or you’re fired”
Alright...
Let’s say it is a very attractive secretary and the boss requires them to walk around the office topless “for the common good”.
Is that apples to apples?
I’m obligated to congregate with others at work.
Employer knows there’s a high chance that someone will bring a highly contagious, and concerningly lethal, disease to the group - and is understandably worried about being sued should grave harm ensue. Ergo it’s understandable, if annoying and misguided, for an employer to require vaccinations lest someone sue with “you knew contagion was likely present, yet you did nothing and your employee died as a result”.
That’s very different from banging the intern.