How are they going to even know you took the vaccine? Honor system? If they force you to disclose doesn't that break HIPAA? If it doesn't break HIPAA, then doesn't this create a precedent that employers can gain your medical history with arbitrary mandates? Seems like a lose-lose.
Here's a quick comparison of HIPAA and HIPPA (what you original said) that will help clear up the confusion. https://pbs.twimg.com/media/E3dxHFYVcAAM3V8?format=png&name=... I don't understand why so many people are obsessed how the company can find out whether you got the vaccine. I mean, as an employee you could lie or otherwise misrepresent your status and probably get away with it, at least for a short time, befor…
It's not about the vaccine - it's about the normalization of employers knowing your medical history. Personally I wouldn't care if I was asked as I've taken the vaccine and would say so.
However I can understand why people might be concerned about employers demanding proof.