The infected should have a marking, on their arm, a tattoo or something

I volunteer you to be the tattoo artist

Many do not know they are infected. That is why social isolation measures are in place.

To see how serious it is, have a look at the German Chancellor:

https://www.youtube.com/watch?v=-vT8e7lkjl8

It is serious, we all have a place to part, and no part of that is victimisation.

We ain't in a Nazi occupied world no more, Toto!!!

Why not just force them to wear a star on their clothing, or a scarlet letter on their forehead?

A microchip under their skin so that they can't buy or sell without it bearing the number 666!

sounds familiar

They're quarantined. This isn't the Scarlet Letter. 🙄

Lol... smh, you're terrible.