“a supermarket chain making a blanket policy for their own legal protection.”
If that’s their reason, then I have to ask, “How stupid are they?” It takes days/weeks after exposure to get the WuFlu. The supermarkets’ lawyers believe a person can pinpoint that their exposure was on a certain day at a certain time in a certain store? That’s crazy talk.
It’s not for that, it’s probably more for the employees.