Oh god! that's just toooooo sexy, ooooooooooh!
(and she's wearing a watch!!!!!!)
It's a rule not well supported by evidence in the first place, like pretty much everything that comes out of the mouths of the infection control nazis.
There is a precedent in that the rule was initially applied to paramedics and then they were allowed out of it because of the weather they have to contend with. Fair enough, not everyone works in a nice warm hospital.
But to give an opt out on religious grounds is appalling.