Thomas Eric Duncan, the first Ebola patient diagnosed in the U.S., at a wedding in Ghana. Texas Health Presbyterian Hospital Dallas, where Duncan was being treated for the disease, on Wednesday, Oct. 8, 2014 said Duncan has died. Wilmot Chayee/AP hide caption

itoggle caption Wilmot Chayee/AP

Senegalese fencer Abdoulaye Thiam (left) competed against Jason Rogers of the U.S. during the 2008 Olympics. Due to Ebola fears, a World Cup fencing event set for Senegal this month has been canceled. Philippe Desmazes/AFP/Getty Images hide caption

itoggle caption Philippe Desmazes/AFP/Getty Images

At a CDC training session for clinicians headed to West Africa, a medical worker practices sanitizing hands after drawing blood from a mannequin portraying an Ebola patient. Brynn Anderson/AP hide caption

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American USAID chief Rajiv Shah meets with Liberian President Ellen Johnson Sirleaf in Monrovia. John Moore/Getty Images hide caption

itoggle caption John Moore/Getty Images

When a high-risk patient is evacuated, strict precautions are followed. Above, aid workers and doctors in protective gear transfer Manuel Garcia Viejo, a Spanish priest diagnosed with Ebola, to a waiting ambulance at a Madrid airport. Spanish Defense Ministry/AP hide caption

itoggle caption Spanish Defense Ministry/AP

Farmer Issiaka Ouedraogo lays cocoa beans out to dry on reed mats, on a farm outside the village of Fangolo, Ivory Coast. Rebecca Blackwell/AP hide caption

itoggle caption Rebecca Blackwell/AP

A licensed clinician is decontaminated before disrobing at the end of a simulated training session by CDC in Anniston, Ala. Training can take a several weeks, making some employers reluctant to encourage their medical workers to volunteer in the Ebola outbreak. Brynn Anderson/AP hide caption

itoggle caption Brynn Anderson/AP

Dr. Wvennie MacDonald, the administrator of the JFK Memorial Hospital, has helped put new procedures in place to keep Ebola out, including a triage station to identify possible Ebola patients at the front gate. John W. Poole/NPR hide caption

itoggle caption John W. Poole/NPR

Emergency room doctor Joshua Mugele, bearded and bespectacled, with nurses at Liberia's JFK Hospital. The man in front of him is Chad Priest, an assistant dean at the Indiana University School of Nursing. Both worked at the hospital this past summer. Courtesy of Joshua Mugele hide caption

itoggle caption Courtesy of Joshua Mugele