Helium
Old Mossy Horns
One would think so BUT define “exposure”.well that's not the route for companies and health departments i have had to work with.
you test postive you out of work.
you live with a positive you quarantine.
that's what i have seen personally happen.
I think that is what any sane person would do with or without govt/company guidelines.
For example, is it being within the same room for a specified amount of time. Or is it they walked past that person