Was about to write the same thing before I saw your comment.
This is so dumb...
Here's a crazy notion... how about you just test them?
And if they don't have it... they can then touch each other.
This virus isn't magic. If you don't have it... you WON'T transmit it...
So just test them before each time they have to shoot a scene and have them quarantine in between.
Shocking, I know.
I'm not criticizing the article, just the silly hoops that productions now have to face.