Does the guy want to die? Why refuse treatment?
My guess is he doesn’t want to be treated then deported.
So don’t treat him...just deport him.
He’s refusing treatment cuz he doesn’t want to be quarantined.
It’s a little like being in prison.
A famous case for this is Typhoid Mary, a cook for upper-class families in either London or New York, about 100 years ago.
She was polite and nice and killed very many people.