Motel rooms are a good solution for the strong sick.
Isolation.
Individual A/C and heat. Isolated living space to cough a lung up.
Still not sure why only 15 people. Perhaps the motel is really trashed in the remaining rooms. I imagine that the city/county will attempt to turn it into a homeless shelter at some point, much to the chagrin of the neighbors. The neighbors are trying to stop its use as a quarantine area - how is that going to be managed?