Because your statement is nonsense, that isn't describing what is going on at all.
Treatment centers aren't classified as "level 4" but research labs can be, the 4 super isolation units that America has were created for treating primarily the researchers in those labs that could become infected from things worse than Ebola, this story is about 35 hospitals designated to treat Ebola patients.
So I see we have Moonbeam and his cohorts for 4 of them. And the wonderful Mayor of Sacramento for 2.