Some health workers in Liberia had stopped using the protective gear that was part of the Ebola routine. The photo above is from 2014, when the epidemic was at its peak.
David P. Gilkey/NPR
The WHO says transmission of Ebola has stopped in Sierra Leone. In August, Adama Sankoh, center, who contracted the virus after her son died from the disease, was cheered after being discharged from a treatment center near Freetown.
Nurse Kaci Hickox speaks to the media last year outside her home in Fort Kent, Maine. Hickox, who sharply protested being quarantined at a New Jersey hospital in 2014 after she returned from treating Ebola patients in West Africa, has filed a lawsuit against the state of New Jersey.
Robert F. Bukaty/AP
Dr. Ian Crozier survived Ebola, only to have his normally blue left eye turn green because of inflammation. Though the rest of his body was Ebola-free, his eye was teeming with the virus.
Emory Eye Center
When Dr. Boie Jalloh got the call to join the fight against Ebola in Sierra Leone, his friends told him he'd be crazy to sign on. It's a good thing he didn't listen.
Aurelie Marrier Dunienville for NPR
None of the biocontainment treatment centers in U.S. hospitals were specifically designed for kids — until now. Texas Children's Hospital aims to fill that gap.
Courtesy of Texas Children's Hospital
Elephants are an option for the first quiz question. These pachyderms are walking on a path at the Lewa Wildlife Conservancy at the foot of Mount Kenya, approximately 185 miles north of Nairobi.
Tony Karumba /AFP/Getty Images
Health workers at an Ebola treatment center, run by Doctors Without Borders, greet a man whose family brought him in by wheelbarrow. They suspected that he had the virus. The center is in Foya, Liberia.
Daniel Berehulak/Edit by Getty Images
Family members, reunited after fleeing Kosovo, pass 2-year-old Agim Shala through the barbed wire fence into the hands of his grandparents at a camp in Albania. The photo was taken on March 3, 1999.
Carol Guzy/The Washington Post/Getty Images