Should people be quarantined when they have impossible or difficult diseases to treat? Why or why not? (this is for a English essay, I need some idea's)

oof that's a rough one with a few different answers. it depends on how bad the disease is. if it's not very serious i don't see the harm in a epidemic of something tiny (like the common cold) but i mean that's just me on the other hand if they have something extremely infectious and moderately-extremely lethal i would say yes. This is a tough question; -;