Liberian workers dismantle shelters in an Ebola treatment center in the Paynes Ville neighborhood of Monrovia. Doctors Without Borders closed the center last month because it was no longer needed. Zoom Dosso/AFP/Getty Images hide caption

itoggle caption Zoom Dosso/AFP/Getty Images

Secretary of State John Kerry and African Union Commission Chairperson Nkosazana Dlamini Zuma signed an agreement Monday to establish the first Centers for Disease Control and Prevention in Africa. The U.S. will provide technical advice and a few staff for the agency. Alex Wong/Getty Images hide caption

itoggle caption Alex Wong/Getty Images

Heffernan photographs health care worker Martha Lyne Freeman. Courtesy of Marc Campos/Occidental College hide caption

itoggle caption Courtesy of Marc Campos/Occidental College

The health workers of Sierra Leone — like Dr. Komba Songu M'Briwah (on the phone) — were dedicated to fighting Ebola. But they had a huge handicap. A government report reveals that some of the money allocated went to pay "ghost workers." David Gilkey/NPR hide caption

itoggle caption David Gilkey/NPR

It's not the real deal. This Ebola Treatment Unit was set up for a TED talk in Vancouver so people could get a sense of what the units are like, and what it's like to put on the protective suit. Nina Gregory hide caption

itoggle caption Nina Gregory

Light shines through the chlorine-stained windows in the blood-testing area at Redemption Hospital in New Kru Town, Monrovia, Liberia. David Gilkey/NPR hide caption

itoggle caption David Gilkey/NPR