Fianto Duri!
Bodies crossing the boundaries of the barrier disintegrate on the spot
Repello Muggletu!
Self explanatory
Protego diabolico!
Allows the user to create a protective ring of black
fire around them that completely incinerates enemies of the caster
Isolation chambers, like homes? Multi family homes and apartments? We know self quarantine policies lock in the infected with non-infected. Of course if there are mandatory quarantine center stays many will avoid getting tested in the first place to avoid the temporary relocation, and child care complications, and job complications. We haven’t tried a real shutdown yet, one that would halt transmission completely and I don’t suspect we will. Not practical, and we are currently in the throes of an an all hands anti-authority boogaloo so I don’t see that going well. The vulnerable/fragile have (some) ways to protect themselves to the extent feasible.