There’s something to be said about such situations. The biblical missionary ethos is to attempt to be as light a burden as possible on the non-Christian community. I wouldn’t object to having recovery camps on US soil but let them be pre-planned for that purpose, rather than ad-hoc centers of potential panic.
The Christian ill have all gone directly to the special Ebola/sars/isolation units.
As far as we know they have paid their own way, and we can assume that their expertise and experience has been very valuable to our infectious disease clinics and our effort to fight Ebola.