Construction workers build an Ebola isolation and treatment center in front of an unfinished and abandoned government building in Monrovia, Liberia, Thursday Sept. 25, 2014. The center , due to open within two weeks, will add 200 beds to existing centers. The outbreak of Ebola has overwhelmed the weak health systems of some of the world’s poorest countries: There aren’t enough doctors and nurses or even clinics to treat the spiraling number of cases.
