Surveillance team member Osman Sow washes his boots after working in a potentially contaminated area of Freetown, Sierra Leone. Survey teams are sent out every day to assess sick people and dispatch burial teams to collect the dead. David Gilkey/NPR hide caption

itoggle caption David Gilkey/NPR

Civilians who had just recently arrived in Yola prepare to flee again, this time in a large open-top truck headed to the city of Jos. Ofeibea Quist-Arcton/NPR hide caption

itoggle caption Ofeibea Quist-Arcton/NPR

Sarah Obama, left, and her translator, Mama Sarah Obama Foundation Executive Director Debra Akello, spoke at the United Nations on Wednesday. Bebeto Matthews/AP hide caption

itoggle caption Bebeto Matthews/AP

Dr. Komba Songu M'Briwah, left, talks on the phone while staff members disinfect offices at the Hastings Ebola Treatment Center in Freetown. David Gilkey/NPR hide caption

itoggle caption David Gilkey/NPR

Baby Sesay, a traditional healer in Sierra Leone, treated a child who later died, apparently of Ebola, and then became sick herself and went to a care center. As this photo was taken, her body seized up and she nearly collapsed. David P Gilkey/NPR hide caption

itoggle caption David P Gilkey/NPR

"Parents enroll their kids here because of our child-friendly toilets," says Eunice, the co-founder of a Kenyan school with latrines designed specially for kids. Frederic Courbet/WSUP/Panos hide caption

itoggle caption Frederic Courbet/WSUP/Panos

Nurses Bridget Mulrooney and Kelly Suter volunteered to work for the International Medical Corps at an Ebola treatment unit in Liberia. IMC is reporting a drop-off in recruits this fall. Stuart J. Sia/International Medical Corps hide caption

itoggle caption Stuart J. Sia/International Medical Corps

A woman enters the Ebola treatment center at the Island Hospital outside of Monrovia, Liberia, Oct. 6. She said she was bleeding heavily from a miscarriage and was turned away from other clinics in the city. John Moore/Getty Images hide caption

itoggle caption John Moore/Getty Images