What, and shoot them dead if they try to escape?
You've got to be kidding.
No. Not kidding. Enforcing emergency rules vital to the survival of the community. We wouldn't quarantine a hsopital or builidng unless it was absolutely vital for public saftey in this country.
What would you do? Let irresponsible people just ignore a quarantine and run wild through your city spreading something like Ebola and maybe killing millions?